The onset of the SARS-COV-2 pandemic has drastically changed the everyday lives of people, communities, and countries. Humans quickly adapted work methods for productivity, while mobility and social life underwent dramatic transformations. In this work, we study how the mobility patterns between administrative regions changed during two years of the pandemic. Specifically, we are focused on...
Stellar activity phenomena, such as stellar spots, flares, coronal mass ejections are manifestations of the underlying magnetic dynamo, thus studying them is an important input for theoretical models. Doppler imaging is an extensively tested and used spot modeling technique. We utilize this technique to derive Doppler images of well-known active stars (young solar type stars as well as giants,...
We introduce new machine-learning techniques for analyzing chaotic dynamical systems. The primary objectives of the study include the development of a new and simple method for calculating the Lyapunov exponent using only two trajectory data points unlike traditional methods that require an averaging procedure, the exploration of phase transition graphs from regular periodic to chaotic...
Context. Time-dependent potentials are common in galactic systems that undergo significant evolution, interactions, or encounters with other galaxies, or when there are dynamic processes like star formation and merging events. Recent studies show that an ensemble approach along with the so-called snapshot framework in dynamical system theory provide a powerful tool to analyze time...
Have you ever wonder why we can't see atoms with our own eyes? Is there anything new or interesting in this tiny scale? This talk uncovers the world of polaritons, quasi-particles from light-matter interaction, as well as some of the latest advancements in Nano-optics, both from a theoretical and experimental perspective. Said researches have great impact in modern chip-on technologies and...
Rich nonlinear dynamics can emerge from hydrodynamic interactions between particles in a fluid. One problem of interest is synchronization in biological flows at the micrometer scale, such as the synchronization of bacterial flagella and the transport of organelles in living organisms by cilia. In this project, we will investigate how oscillating particles in a fluid synchronize due to...
The early universe was composed primarily of hydrogen and helium, and over time, nucleosynthesis led to the formation of other heavier metal elements. Therefore the detailed abundance patterns within stars are indicators of their ages. Using a dataset of 6613 stars from APOKASC, their abundance ratios and asteroseismic ages, we implemented a K-dimensional tree to match each star with another...
The Bayesian data analysis approach combines prior knowledge and observed data to derive information about the parameters of a model. Typically, numerical sampling methods are required for performing Bayesian inference due to the complexity of the models and the high-dimensional parameter spaces involved, as is usually also the case in particle physics applications. Markov Chain Monte Carlo...
Time-resolved spectroscopy has attracted a lot of attention in the last years. Judging by the Physics nobel prizes in 1999, 2018 and 2023, ultrafast techniques based on femtosecond lasers are also still very much on the cutting edge of research. I will present the basics of femtosecond pulse generation. Crucial applications taking advantage of the highly nonlinear processes possible with...
Lately there has been a renewed interest in studying nonlinear multimoded optical systems, namely optical systems consisting of thousands of optical fibers such as high-speed communication structures. The complexity of interactions in these systems is the reason to numerous exceptional optical effects. This somewhat chaotic process has led to several theoretical challenges which we aren't...
The dynamics of a quantum particle on a square lattice subjected to an
external constant force is numerically studied. In one dimension, it is well
known that if the wave packet is wide enough, the average position over time
will evolve in an oscillatory manner, while the shape of the wave packet is pre-
served. This phenomenon is known as Bloch oscillations and is characteristic
for...
The dynamics and processes of acceleration of photons to very high energies in the jets of Active Galactic Nuclei (AGNs) is an ongoing topic of research in Astroparticle Physics. Time sensitivity and fluctuation in the high-energy photon flux of these AGNs can offer insights into the concept behind the acceleration. Thus, approaches are made to analyze long-time data of AGN sources probing...
Sensing magnetic fields with nitrogen-vacancy (NV) centers in diamonds promises spatial, temporal and field resolution particularly suitable for biological measurements. The DiaQNOS consortium [1] utilizes diamonds with NVs as a stable and biocompatible platform to create a neurosurgical tool for diagnostics of cancerous cells in brain in vivo.
For that, we combine a microwave (MW) free...
Axions arise in the context of solving the strong CP - problem in the Peccei-Quinn (PQ) theory, where an additional global U(1) symmetry is introduced in the SM QCD Lagrangian and is spontaneously broken, leading to the appearance of a pseudoscalar pseudo-Nambu-Goldstone boson known as the axion. The dark matter problem is another important challenge in modern physics, and its composition...
As part of the research into Earth's magnetic field conducted by the Faculty of Physics at the University of Warsaw, studies are being carried out on magnetic anomalies caused by meteorite impacts. These celestial objects, upon striking the Earth's surface, have left distinct traces by disrupting the magnetic field values. The research focuses on the most significant impact craters in Europe,...
Single-photon sources are crucial components in quantum photonics applications, such as quantum communications or computing. Ideally, these sources emit one photon at a time, are highly efficient, and can be integrated into photonic circuits for complex quantum system designs. Various platforms have been explored to achieve such sources, with semiconductor quantum dots being particularly...
We delve into the extended XY model with an n-(n+3) interaction, inspired by the research of Titvinidze and Japaridze in 2003, which introduced the XY model with an n-(n+2) interaction term. First, we investigate the isotropic case, when Jx = Jy. Subsequently, we extend our exploration to include anisotropic considerations. This study aims to elucidate the distinctive characteristics of both...
Fast Radio Bursts (FRBs) are millisecond-duration bursts of radio waves that mostly originate from outside our galaxy. Although their exact causes remain uncertain, astronomers are now beginning to use these bursts as tools to probe the cosmos. One of the remarkable properties of these radio transients are their scintillations, which are variations in brightness caused by the scattering due to...
In this thesis, we study the landau levels of electrons moving in a magnetic field with spherical symmetry produced by a Dirac monopole. The Electrons in this study are considered to move on the surface of a sphere—traditional approaches to solving this problem mostly involve solving Schrödinger’s equation. However, in my work, we find eigenfunctions using group theory. We construct ladder...
This poster delves into the extended XY model with an n-(n+3) interaction, inspired by the research of Titvinidze and Japaridze in 2003, which introduced the XY model with an n-(n+2) interaction term. First, we investigate the isotropic case, when $J_x=J_y$. Subsequently, we extend our exploration to include anisotropic considerations. This study aims to elucidate the distinctive...
Double perovskites have gained some ground on research studies, once we can replace half of the B-site cations with other B' cations and achieve rock salt ordering between them, exhibiting extraordinary properties compared to the simple perovskite structure. [1]
Rare-earth-based double perovskites, Er2NiMnO6 and Nd2NiMnO6, were prepared by solid-state reaction [2], where a synthesis...
Symmetries turn out to be a very useful concept in physics again and again - especially when describing the smallest particles. That's what the Standard Model of particle physics is based on. But what if math deserts you and you cannot use your theory to calculate the quantities you're interested in? Go effective! This tutorial will outline how to find an effective field theory describing the...
This tutorial will teach about using Lie group theory to solve differential equations. Point transformations will be introduced. The theoretical framework involves defining one-parameter groups of point transformations and their associated infinitesimal generators. We demonstrate the utility of this approach through examples, highlighting how symmetry conditions can simplify the resolution of...
Evaluating systematic uncertainties takes a significant amount of time and effort in many physics analyses. During their lab courses, many students learn to identify possible sources of systematic uncertainties and how to quantify them. However, they are usually not exposed to handling them using statistical methods. In this tutorial, I will offer a brief overview on parameter estimation with...
Our team, within the framework of the tutorial, offers to get acquainted with the basic software skills for any student who wants to successfully integrate into the scientific environment. We will talk about CV, cover letter, motivational letter and personal statement, showing differences between these kinds of papers. We offer a short guide on writing them, in which we will look at some of...
The study of asteroids is essential for the understanding of the universe’s past, present and future. Studying the remains of our Solar System’s formation can guide us to understand the evolution, distribution and composition of matter around other stars, which is useful for Astronomy, Astrophysics, and even Astrobiology. There are different ways in which we can study asteroids. The first one...
Particulate matter (PM) pollution, a global environmental and public health challenge, necessitates a detailed analysis of PM2.5 and PM10 levels across diverse regions of Nepal. Study of how PM2.5 and PM10 levels vary across different regions of Nepal and over different human intervention is crucial for a comprehensive analysis. A spectral analysis, including the application of Continuous...
Reliable infrastructure networks like the electricity grid are crucial for modern society.
The demand and supply of electricity need to be always balanced to ensure grid stability.
Various markets have formed to achieve power grid and electricity price stability These different markets enable trading over different time spans and ensure that supply and demand are always met....
This study introduces the parametrization of the pion vector form factor utilizing conformal transformations as an alternative to dispersion theory. After offering a foundational understanding of dispersive bounds, the parmetrization is adjusted such that the form
factor exhibits the desired behavior for asymptotic values and the threshold. The final outcome is assessed by comparing the...
Quantum state discrimination is a fundamental problem in quantum information theory, with a multitude of configurations, though exact solutions are scarce. One notable case involves a circular array with two possible known states, where optimal discrimination is achieved via square root measurement. However, a general method for arbitrary unknown states lacks a closed-form solution. This work...
As a result of the collision between heavy ions moving with relativistic or ultra-relativistic velocities, the quark-gluon plasma is produced along with remnants (spectators) which are responsible for generating the electromagnetic field. After the collision, some particles are created in the quark-gluon plasma or a space around by virtual photons interactions. Using the Monte-Carlo method, a...
Continuously driven non-linear systems show interesting behaviour such as bistability and self-oscillations, and have recently come into the focus of theoretical and experimental research again. The system’s nonlinearity fundamentally changes the response to constant driving such that it can even facilitate time-periodic, self-oscillating states. An interesting question regards the interplay...
This project aimed to generate nonclassical states among micro and macro-objects. For this, we considered a cavity with perfectly reflecting mirrors where one of the mirrors was oscillating. Our desired outcome was to show that we can entangle classical macro-objects with micro-objects, such as a mechanical mirror and a photon, using quantum optics. The entanglement of classical objects would...
The geophysical-geological component of the RAF (Radagost Astral Forge) analog space base project aimed to investigate anomalies in the Earth's magnetic field. Mining waste heaps presented particularly intriguing research subjects due to spontaneous combustion, which caused magnetic anomalies and the formation of new minerals. These heaps had been insufficiently studied thus far, and this...
Domain walls in ferroelectric materials are an exciting new type of graphene-like 2D functional interface with properties that can differ significantly from the surrounding bulk. Like graphene, they can display various transport regimes, such as semiconducting, metallic, and even superconducting, behaviour. Domain walls are a part of the ferroelectric microstructure (they are interfaces that...
Superconductors exhibit a nonlinear interaction with an applied light, which can resonantly excite the collective amplitude (Higgs) mode. Here we study light-induced dynamics of layered superconductors, where each layer is coupled to adjacent layers via the Josephson coupling and the first few layers near the surface are driven by an in-plane-polarized light. We study the system under the...
The monitoring methods, prediction drought and precipitation distribution, the possibilities of their application in Georgia are used in proposed work. Standardized Precipitation Index (SPI) was selected as the research parameter because it better expresses the pronounced drought trends than the Standardized Precipitation Evapotranspiration Index (SPEI). Using prediction model and algorithm,...
In this study we calculated the center of mass and the geometric center of México’s territory profile based on maps that represent the country’s terrain using color codes in the maps, allowing for a clear visualization of México’s topography. We wrote the code in Python to perform the calculations and obtained the country’s topographic data and land border profile from public databases.
The...
Since their advent in the 1950s, Numerical Weather Prediction (NWP) models have used structured lat-lon mesh grids for forecasting, which subdivide the 2D (horizontal) global surface into square grid cells of equal size. This has historically resulted in issues such as unnecessarily high resolution at the poles (the ‘pole problem’), and flow distortions at nest boundaries with the use of...
Polyethylene is by far the most widely used and produced plastic in the world, mainly for packaging. However, polyethylene poses environmental problems as it does not degrade in the natural environment. Therefore, in view of the current and future environmental crisis, it is necessary to introduce certain alternatives.
The aim of the present work is to investigate different modified...
Aggregates of lipids in living systems can range over several magnitudes in their size. The first choice of and most trustable modelling certainly is molecular dynamics, where a system is fully populated by molecules made from individual, interacting particles, providing by their trajectories aggregate behavior and means for detailed study. For the resource-constrained lipid scientist though,...
With the upcoming demand for "Internet of Things" (IoT) devices, intensive research has been conducted on sustainable power solutions for these devices. IoT devices utilize sensors embedded in everyday objects, such as light switches, doors, and vehicles, to collect and communicate data over the internet. One promising method to power these devices is indoor photovoltaics (PVs)....
How micro/nanoplastics affect human health is the topic of my Bachelor's thesis that I'm just starting. Since I'm at the beginning of research and writing, the topic may become more specific during the process, e.g. how plastic waste affects the respiratory system or neurology.
We determine the masses and residues of the ground and excited spin 1/2 baryons consist of two heavy b or
c quark utilizing the QCD sum rule formalism. In the calculations, we consider the nonperturbative
operators up to ten mass dimensions in order to increase the accuracy compared to the previous calculations. We report the obtained results for both the symmetric and antisymmetric currents...
Python has emerged as a powerful tool in the field of physics, revolutionizing both research and education. My poster will highlight several key applications of Python that make it indispensable for physicists today. Firstly, Python excels in numerical simulations, including Molecular Dynamics (MD), Computational Fluid Dynamics (CFD), and Monte Carlo Simulations, allowing scientists to model...
Since the 2010 the Proton Radius Puzzle appeared and many groups all around the world are trying to solve it. There are two main ways to solve it - hydrogen spectroscopy and muonic hydrogen spectroscopy.
Scientists of Petersburg Institute of Nuclear Physics are constructing the new experimental setup to measure the proton radius via hydrogen spectroscopy. The experiment is called PRES and is...
KM3NeT is a research infrastructure housing the next generation of Cherenkov neutrino telescopes. It consists of two detectors with similar technology currently under construction in the Mediterranean Sea: ARCA (off-shore Sicily, Italy) and ORCA (off-shore Toulon, France) dedicated to Astroparticle and Oscillation Research with Cosmics in the Abyss, respectively. ARCA will instrument 1 Gton of...
Neutrons play a dominant role in the stellar nucleosynthesis of heavy elements. We review a scheme for the experimental determinations of neutron-induced reaction cross sections using a high-intensity neutron source based on the 18O(p,n)18F reaction with an 18O-water target at SARAF’s upcoming Phase II. The quasi-Maxwellian neutron spectrum with effective thermal energy kT ≈ 5 keV,...
Turbulence in fluids represents one of the most complex and challenging phenomena in fluid mechanics. Accurately modeling turbulence is crucial for various engineering and scientific applications, such as aerodynamics, meteorology, and environmental engineering. Traditional numerical methods, including Direct Numerical Simulations (DNS) and Large Eddy Simulations (LES), demand substantial...
The poster will present the Atmospheric boundary layer and the atmospheric phenomena that occur there . Also I will present the experimental detection methods that are used to detect the ABL .Besides , the poster will show the algorithm I used in my own research to detect the ABL using data from a shipborne campaign .
Aluminum aqueous batteries offer several promising properties: low cost, safe operation, eco-friendliness, and high theoretical capacity. Their main challenges, which are linked to the formation of the oxide layer and side hydrogen reactions, can be reduced by using the Al - Al2Cu lamellar geometry of electrodes. The preparation of heterogeneous nanostructural electrodes from layered Al films...
The electron density, energy consumption per cycle, and power dissipation of plasma generated by a dielectric barrier discharge (DBD) at atmospheric pressure and room temperature were measured across a range of applied voltages. The impact of non-thermal plasma (NTP) on the germination of coriander (Coriandrum sativum) and cucumber (Cucumis sativus) seeds was thoroughly investigated, alongside...
In recent years, thulium-doped fibre (TDF) laser systems operating around the 1.9-micrometre region, so-called “eye-safe”, have remarkably performed in various applications, such as medical treatments, remote sensing, scientific research, industrial material processing, etc. Most of these applications are achieved by mode-locked TDF lasers working in the anomalous dispersion that limits the...
The next edition of your favorite event, ICPS 2025, will be held in beautiful Serbia! From August 3 to August 10, 2025, you will be our guest in lovely Novi Sad. We will guide you through our event's program, the opportunities it will provide for you, any answer any of your questions or doubts.
The International Conference of Physics Students (ICPS) is an annual conference bringing together...
This study systematically examines the physical parameters influencing the macroscopic pattern formation in a ferrofluid under a magnetic field. Our experiments focus on spike height variations and Rosensweig instabilities within the context of magnetorheological effects. The home-built apparatus consists of a permanent neodymium magnet attached in a set up developed using the principle of...
In order to come closer to understanding extragalactic sources of cosmic rays and their intrinsic mechanisms, the analysis of various multi-messenger signals has proven to be extremely promising in recent decades. Typically, numerical simulations are undertaken to investigate the validity of various astrophysical scenarios. Predictions considering photonuclear interactions depend significantly...
Gallium Nitride (GaN) nanowires have gained significant attention in recent years due to their remarkable mechanical properties and their potential applications in various fields. These nanowires, with diameters ranging from tens to hundreds of nanometers and lengths extending from a few nanometers to several micrometres, offer unique advantages in nanogenerators and optoelectronic...
In this study we calculated the center of mass and the geometric center of México’s territory profile based on maps that represent the country’s terrain using color codes in the maps, allowing for a clear visualization of México’s topography. We wrote the code in Python programming language to perform the calculations and obtained the country’s topographic data and land border profile from...
Langevin equation can be related to Brownian motion and diffusion to the concept of friction. Describing the dynamics of particles influenced by random forces (the behavior of particles undergoing random motions due to thermal fluctuations), it allows for the prediction and analysis of diffusion phenomena under various conditions. An equation of motion such as this, which includes a...
Fermi acceleration refers to a type of motion in which charged particles are constantly reflected, most often through magnetic mirrors. Such a motion takes its name from a famous scientist, Enrico Fermi. Accelerated Fermi motion is the main mechanism for how we would describe the accelerated motion of cosmic rays. These aspects where mainly discussed by A.J. Lichtenberg and **M. A....
In 1827, Scottish botanist Robert Brown noticed that particles in a liquid move chaotically in different directions. In the beginning of the 20th century, Albert Einstein showed that for long times mean squared displacement (MSD) of Brownian particles is proportional to time. This kind of diffusion is called normal diffusion. On the other hand, anomalous diffusion, characterized by a...
In this research, we studied the characteristics of the graph network of a solar flaring active region (FAR) and a solar non-flaring active region (non-FAR). Our method in this research includes data pre-processing, extracting patches and their flux using the Yet Another Feature Tracking Algorithm (YAFTA), making a visibility graph (VG), calculating network parameters, and obtaining time...
Beam emission spectroscopy (BES) is an active plasma diagnostic employed for plasma density measurements. BES synthetic diagnostics are computationally expensive and comprehensive modelling suites designed to provide a better understanding of the diagnostic’s perception of underlying plasma phenomena. RENATE-OD is an advanced BES synthetic diagnostic relying on a rate-equation solver to derive...
Quantum Error Correction (QEC) is crucial for any practical implementation of Quantum Information protocols. It mitigates decoherence, compensates for imperfections in quantum operations, and is fundamental for scaling quantum algorithms. QEC enables reliable quantum computation on a larger scale. Our research focuses on establishing criteria to construct a logical basis for a Hybrid Quantum...
The subatomic particles born in abundance in stars and supernovae, known as neutrinos are characterized by their weak interactions with matter. Due to that, they are able to travel vast distances from their source without being absorbed or deflected. This results in neutrinos having great potential in the development of technology specializing in probing the universe. As such, this poster...
We discuss the concept of spontaneous symmetry breaking and illustrate it with a general example. We consider Wigner-Weyl and Nambu-Goldstone realisations of symmetry in the quantum theory. Next, we state Goldstone’s theorem and sketch its proof. We discuss why quantum chromodynamics is not realised in the Wigner-Weyl mode. We also consider different order parameters of spontaneous chiral...
We are a group of students from Gdańsk University of Technology and want to bring thermonuclear fusion to our University by creating our own fusor. In this poster we want to share our progress on the project.
A fusor is a device designed to heat ions using an electric field to the temperature required for achieving thermonuclear fusion. This is achieved by inducing potential difference...
In this research, SnO2 material was used to make a thin layer of electron carrier for use in optoelectronic devices. Optical properties such as the percentage of transmission and band gap energy and desired morphological properties such as thickness were measured and investigated. On the other hand, the quality of the surface coating and its relationship with the contact angle were...
While the origin of cosmic rays at the highest energies remains unclear to date, nearby radio galaxies are considered as potential candidates. Limiting the sources of ultra-high-energy cosmic rays (UHECR) to such a small number, their finite lifetime would have a significant impact on the resulting energy spectrum and mass composition at Earth. This is due to the so-called magnetic horizon...
To understand reaction mechanisms in heterogenous catalysis, X-ray Photoelectron Spectroscopy (XPS) is a widely used characterization technique as it allows the identification of involved species based on core-level binding energies. This approach exploits the fact that electron core-level binding energies are highly sensitive to the local chemical environment, resulting in shifts upon changes...
High-precision quantities such as the anomalous magnetic moment of the muon $a_\mu$ have gained increasing interest in the high-energy-physics community. In this context, the Muon g-2 experiment at Fermilab will have an unprecedented precision that requires a commensurate theoretical estimate. The corresponding error is fully driven by hadronic uncertainties, including uncertainties of the...
Bootstrapping is a numerical method initially used in the Conformal field theory (in this context, also known as the conformal bootstrap). We applied this method to Quantum mechanics to determine the energy levels of two simple quantum mechanical systems: the harmonic oscillator and the double-well. In the case of the double-well, we also focused on the energy splitting of the ground and the...
The next edition of your favorite event, ICPS 2025, will be held in beautiful Serbia! From August 3 to August 10, 2025, you will be our guest in lovely Novi Sad. We will guide you through our event's program, the opportunities it will provide for you, any answer any of your questions or doubts.
The International Conference of Physics Students (ICPS) is an annual conference bringing together...
With the upcoming demand for "Internet of Things" (IoT) devices, intensive research has been conducted on sustainable power solutions for these devices. IoT devices utilize sensors embedded in everyday objects, such as light switches, doors, and vehicles, to collect and communicate data over the internet. One promising method to power these devices is indoor photovoltaics (PVs)....
The present study aims to estimate the energy and power of particles emitted by primordial black holes, which have a mass ten times smaller than the Sun.
At the first stage of the research, the maximum Lorentz factor of the electron was estimated, in particular, several mechanisms that could limit the acceleration of particles were considered, and only the mechanism that gave the lowest value...
The stability of an anisotropic collisionless plasma layer to small disturbances within the framework of magnetohydrodynamics (MHD) is explored. We base our analysis on moment equations derived from the Vlasov kinetic equation, accounting for heat flow along spatially shearing flows. To determine the complex spectral parameter governing the instability growth rate, we solve the boundary value...
In this work we study mud-flow system based on the generalized rheological equation. In the simplified case of 1D inclined landscape we will try to tackle the problem and derive the corresponding analytic solution for pressure distribution, then we will consider 2D flow around cylindrical columns. Finally using the results obtained we will attempt to refine the set of rules required for...
Neutrons play a dominant role in the stellar nucleosynthesis of heavy elements. We review a scheme for the experimental determinations of neutron-induced reaction cross sections using a high-intensity neutron source based on the 18O(p,n)18F reaction with an 18O-water target at SARAF’s upcoming Phase II. The quasi-Maxwellian neutron spectrum with effective thermal energy kT ≈ 5 keV,...
Stochastic resonance (SR) is a phenomenon in which a signal that is normally too weak to be detected by a sensor can be amplified by adding white noise that contains a wide range of frequencies. Frequencies in the white noise that match the frequencies of the original signal resonate with each other, amplifying the original signal while leaving the rest of the white noise unamplified. This...
Our research analyses 2-dimensional and 3-dimensional atomistic numerical systems utilizing a Lennard-Jones potential to investigate non-equilibrium dynamics exhibited at low-temperature supercooled states. The widely regarded theory of dynamic facilitation in supercooled liquids posits the existence of dynamic heterogeneities observable as so-called regions of high and low mobility. Our...
The Solar and Heliospheric Observatory (SOHO) provides us with unprecedented short-cadence spectroscopic and photospheric data of the Sun-as-a-star for 27 years. Here the data from the GOLF and VIRGO/SPM instruments are used. This dataset completely covers the previous solar cycles (23 and 24) and contains the onset of the current solar cycle. The measurement of the solar activity cycle with...
The aim of the presented study is to analyze the influence of solar radiation and atmospheric circulation on the occurrence of temperature anomalies in Warsaw.
The research will focus on understanding how these variables affect temperatures in Poland and examining the variability of anomalies as a result of global warming. The study is based on measurement data collected by the Radiation...
For ten days, a post-mining heap from the coal mine in Bytom was transformed into an analog space base. This place became a hub of scientific activity as young researchers from the Scientific Club of Geophysics at the University of Warsaw embarked on an innovative project to simulate Martian conditions. The mission, named RAF-Analog Space Mission, aimed to replicate space conditions, test...
The $\Lambda$CDM model is the most widely accepted model of cosmological structure formation and evolution. It includes a form of Cold Dark Matter (CDM), which is non-quantum, non-relativistic and collisionless. It settles into extended and dense self-gravitating haloes as a result of cosmic structure formation. CDM haloes act as a stabilizing agent for galaxies, while the late-time...
This tutorial provides an introductory yet focused overview of mechanically modelling nanostructures using COMSOL Multiphysics. The session will cover basic features of COMSOL, emphasising the mechanical simulation of nanostructures. Participants will learn to navigate the user interface, create geometries, choose materials, apply meshes, and calculate properties of nanoscale structures such...
The writing of articles, essays, and term papers are something that every physics student have to face at some point and more than once. In this case, it is crucial to focus on the essence of the work, as scientific research itself is time-consuming and you do not want to spend even more time on formatting and paperwork. This is exactly where we can help students with our latex tutorial. Since...
The "School Day Initiatives of TC India" workshop aims to raise awareness and encourage participation in the IAPS School Day. This event inspires school students with interactive physics sessions, hands-on experiments, and engaging demonstrations.
The workshop will highlight TC India's successful activities, such as physics demonstrations, astronomy sessions, and games. Participants will...
Our tutorial aims to give the students an insight into TRIZ- theory of inventive problem solving, and demonstrate its methods and practical applications. This theory, developed in the Soviet Union, covers all the principles that inventors can use in their work and allows them to find effective solutions to problems in any field of work.
The first part of our tutorial is dedicated to methods...
Solving systems of nonlinear differential equation, such as found in plasma physics, is a current challenge in fault-tolerant quantum computing. To this aim, a method to solve the classical Liouville equation on quantum computers is developed using the Koopman-Von Neumann transform.The quantum algorithm evolves an initial wavefunction in discrete space and time whose probability density...
Nowadays, due to the recent Covid-19 pandemic, rapid detection and identification of pathogenic microorganisms causing diseases become the urgent problem for scientists and clinicians. We consider some optical methods, and their application to study absorption and scattering properties of viral particles in purpose of virus identification.
Currently, polymerization chain reaction (PCR)...
The main purpose of this research is to describe the motion of a relatively accelerated particle, which is moving on a spiral. First, we write an equation of a spiral in polar coordinates and then we write the appropriate metric for the particle. With this information we write the lagrangian and try to find how velocity is dependent on time, and from that, if possible, find how the radius...
Acoustics of kinematically complex shear flows is already well studied, using the non-modal approach method in the context of described kinematic complexity. Linear coupling of ion acoustic and cyclotron waves in plasma flows is also considered to be well studied, they are studied in simple, parallel flow. The main goal of our research is to try and study the coupling of this two waves,...
The quest to interpret spectra (UV, VIS, Raman, etc.) is a well-known problem for physicists from fields such as experimental, complex systems, or phonics, where with each sample a spectrum can be measured to check its quality and properties, that quest can be seen with each newly studied material or compound [1]. Recent advancements in theoretical frameworks, such as genetic algorithms, and...
In this study, we conducted a comprehensive analysis of the extra-tidal part of the globular cluster NGC 5466. This cluster was chosen for its unique characteristics, including a blue horizontal branch and a large, centrally concentrated distribution of blue stragglers. Our goal was to gain a deeper understanding of the structure and composition of this region of the cluster. To achieve this,...
In this research, graphene quantum dots (GQDs) are made by a simple, fast, cost-effective method using the thermal decomposition of citric acid. By adding different impurities to GQDs and contaminating it with different structures, an attempt is made to increase the luminescence intensity, and also by modifying the surface of these points by polyethylene glycol using the hydrothermal method,...
The classical model of harvesting energy for autotroph organisms is based on the ability to produce through photosynthesis with solar-origin photons. However, subsurface regions lack the latter energy source and this presents new challenges for the evolution of life. In order to survive in such extreme environments, alternative mechanisms have been proposed.
Bacterium Candidatus...
Quantum technology is a rapidly advancing field in physics, with significant implications for various applications. In this talk, I will delve into quantum sensing, with a specific emphasis on gravity gradient sensing. Our ongoing research focuses on utilizing magnon systems, particularly involving a YIG (yttrium-iron-garnet) sphere, for detecting the Earth’s gravity gradient. By coupling the...
As part of our research, we investigated light scattering in biological tissues. We used both experimental research and computer modeling methods to address this issue. The aim of the research is to utilize spectroscopic methods to determine the general composition of biological tissue, specifically human skin. Experimental research was conducted in the medical field, focusing on the skin's...
Brief presentation of my Master's Dissertation:
Based on recent development on the description of primordial black hole (PBH) formation out of strong first order phase transition (PT), I discuss how this could limit the parameter space of interest for future gravitational wave detectors such as LISA.
Turbulence in fluids represents one of the most complex and challenging phenomena in fluid mechanics. Accurately modeling turbulence is crucial for various engineering and scientific applications, such as aerodynamics, meteorology, and environmental engineering. Traditional numerical methods, including Direct Numerical Simulations (DNS) and Large Eddy Simulations (LES), demand substantial...
The poster will present the Atmospheric boundary layer and the atmospheric phenomena that occur there . Also I will present the experimental detection methods that are used to detect the ABL .Besides , the poster will show the algorithm I used in my own research to detect the ABL using data from a shipborne campaign .
Aluminum aqueous batteries offer several promising properties: low cost, safe operation, eco-friendliness, and high theoretical capacity. Their main challenges, which are linked to the formation of the oxide layer and side hydrogen reactions, can be reduced by using the Al - Al2Cu lamellar geometry of electrodes. The preparation of heterogeneous nanostructural electrodes from layered Al films...
The electron density, energy consumption per cycle, and power dissipation of plasma generated by a dielectric barrier discharge (DBD) at atmospheric pressure and room temperature were measured across a range of applied voltages. The impact of non-thermal plasma (NTP) on the germination of coriander (Coriandrum sativum) and cucumber (Cucumis sativus) seeds was thoroughly investigated, alongside...
In recent years, thulium-doped fibre (TDF) laser systems operating around the 1.9-micrometre region, so-called “eye-safe”, have remarkably performed in various applications, such as medical treatments, remote sensing, scientific research, industrial material processing, etc. Most of these applications are achieved by mode-locked TDF lasers working in the anomalous dispersion that limits the...
The next edition of your favorite event, ICPS 2025, will be held in beautiful Serbia! From August 3 to August 10, 2025, you will be our guest in lovely Novi Sad. We will guide you through our event's program, the opportunities it will provide for you, any answer any of your questions or doubts.
The International Conference of Physics Students (ICPS) is an annual conference bringing together...
This study systematically examines the physical parameters influencing the macroscopic pattern formation in a ferrofluid under a magnetic field. Our experiments focus on spike height variations and Rosensweig instabilities within the context of magnetorheological effects. The home-built apparatus consists of a permanent neodymium magnet attached in a set up developed using the principle of...
In order to come closer to understanding extragalactic sources of cosmic rays and their intrinsic mechanisms, the analysis of various multi-messenger signals has proven to be extremely promising in recent decades. Typically, numerical simulations are undertaken to investigate the validity of various astrophysical scenarios. Predictions considering photonuclear interactions depend significantly...
Gallium Nitride (GaN) nanowires have gained significant attention in recent years due to their remarkable mechanical properties and their potential applications in various fields. These nanowires, with diameters ranging from tens to hundreds of nanometers and lengths extending from a few nanometers to several micrometres, offer unique advantages in nanogenerators and optoelectronic...
In this study we calculated the center of mass and the geometric center of México’s territory profile based on maps that represent the country’s terrain using color codes in the maps, allowing for a clear visualization of México’s topography. We wrote the code in Python programming language to perform the calculations and obtained the country’s topographic data and land border profile from...
Langevin equation can be related to Brownian motion and diffusion to the concept of friction. Describing the dynamics of particles influenced by random forces (the behavior of particles undergoing random motions due to thermal fluctuations), it allows for the prediction and analysis of diffusion phenomena under various conditions. An equation of motion such as this, which includes a...
Fermi acceleration refers to a type of motion in which charged particles are constantly reflected, most often through magnetic mirrors. Such a motion takes its name from a famous scientist, Enrico Fermi. Accelerated Fermi motion is the main mechanism for how we would describe the accelerated motion of cosmic rays. These aspects where mainly discussed by A.J. Lichtenberg and **M. A....
In 1827, Scottish botanist Robert Brown noticed that particles in a liquid move chaotically in different directions. In the beginning of the 20th century, Albert Einstein showed that for long times mean squared displacement (MSD) of Brownian particles is proportional to time. This kind of diffusion is called normal diffusion. On the other hand, anomalous diffusion, characterized by a...
In this research, we studied the characteristics of the graph network of a solar flaring active region (FAR) and a solar non-flaring active region (non-FAR). Our method in this research includes data pre-processing, extracting patches and their flux using the Yet Another Feature Tracking Algorithm (YAFTA), making a visibility graph (VG), calculating network parameters, and obtaining time...
Beam emission spectroscopy (BES) is an active plasma diagnostic employed for plasma density measurements. BES synthetic diagnostics are computationally expensive and comprehensive modelling suites designed to provide a better understanding of the diagnostic’s perception of underlying plasma phenomena. RENATE-OD is an advanced BES synthetic diagnostic relying on a rate-equation solver to derive...
Quantum Error Correction (QEC) is crucial for any practical implementation of Quantum Information protocols. It mitigates decoherence, compensates for imperfections in quantum operations, and is fundamental for scaling quantum algorithms. QEC enables reliable quantum computation on a larger scale. Our research focuses on establishing criteria to construct a logical basis for a Hybrid Quantum...
The subatomic particles born in abundance in stars and supernovae, known as neutrinos are characterized by their weak interactions with matter. Due to that, they are able to travel vast distances from their source without being absorbed or deflected. This results in neutrinos having great potential in the development of technology specializing in probing the universe. As such, this poster...
We discuss the concept of spontaneous symmetry breaking and illustrate it with a general example. We consider Wigner-Weyl and Nambu-Goldstone realisations of symmetry in the quantum theory. Next, we state Goldstone’s theorem and sketch its proof. We discuss why quantum chromodynamics is not realised in the Wigner-Weyl mode. We also consider different order parameters of spontaneous chiral...
We are a group of students from Gdańsk University of Technology and want to bring thermonuclear fusion to our University by creating our own fusor. In this poster we want to share our progress on the project.
A fusor is a device designed to heat ions using an electric field to the temperature required for achieving thermonuclear fusion. This is achieved by inducing potential difference...
In this research, SnO2 material was used to make a thin layer of electron carrier for use in optoelectronic devices. Optical properties such as the percentage of transmission and band gap energy and desired morphological properties such as thickness were measured and investigated. On the other hand, the quality of the surface coating and its relationship with the contact angle were...
While the origin of cosmic rays at the highest energies remains unclear to date, nearby radio galaxies are considered as potential candidates. Limiting the sources of ultra-high-energy cosmic rays (UHECR) to such a small number, their finite lifetime would have a significant impact on the resulting energy spectrum and mass composition at Earth. This is due to the so-called magnetic horizon...
To understand reaction mechanisms in heterogenous catalysis, X-ray Photoelectron Spectroscopy (XPS) is a widely used characterization technique as it allows the identification of involved species based on core-level binding energies. This approach exploits the fact that electron core-level binding energies are highly sensitive to the local chemical environment, resulting in shifts upon changes...
High-precision quantities such as the anomalous magnetic moment of the muon $a_\mu$ have gained increasing interest in the high-energy-physics community. In this context, the Muon g-2 experiment at Fermilab will have an unprecedented precision that requires a commensurate theoretical estimate. The corresponding error is fully driven by hadronic uncertainties, including uncertainties of the...
The study of asteroids is essential for the understanding of the universe’s past, present and future. Studying the remains of our Solar System’s formation can guide us to understand the evolution, distribution and composition of matter around other stars, which is useful for Astronomy, Astrophysics, and even Astrobiology. There are different ways in which we can study asteroids. The first one...
Particulate matter (PM) pollution, a global environmental and public health challenge, necessitates a detailed analysis of PM2.5 and PM10 levels across diverse regions of Nepal. Study of how PM2.5 and PM10 levels vary across different regions of Nepal and over different human intervention is crucial for a comprehensive analysis. A spectral analysis, including the application of Continuous...
Reliable infrastructure networks like the electricity grid are crucial for modern society.
The demand and supply of electricity need to be always balanced to ensure grid stability.
Various markets have formed to achieve power grid and electricity price stability These different markets enable trading over different time spans and ensure that supply and demand are always met....
This study introduces the parametrization of the pion vector form factor utilizing conformal transformations as an alternative to dispersion theory. After offering a foundational understanding of dispersive bounds, the parmetrization is adjusted such that the form
factor exhibits the desired behavior for asymptotic values and the threshold. The final outcome is assessed by comparing the...
Quantum state discrimination is a fundamental problem in quantum information theory, with a multitude of configurations, though exact solutions are scarce. One notable case involves a circular array with two possible known states, where optimal discrimination is achieved via square root measurement. However, a general method for arbitrary unknown states lacks a closed-form solution. This work...
As a result of the collision between heavy ions moving with relativistic or ultra-relativistic velocities, the quark-gluon plasma is produced along with remnants (spectators) which are responsible for generating the electromagnetic field. After the collision, some particles are created in the quark-gluon plasma or a space around by virtual photons interactions. Using the Monte-Carlo method, a...
Continuously driven non-linear systems show interesting behaviour such as bistability and self-oscillations, and have recently come into the focus of theoretical and experimental research again. The system’s nonlinearity fundamentally changes the response to constant driving such that it can even facilitate time-periodic, self-oscillating states. An interesting question regards the interplay...
This project aimed to generate nonclassical states among micro and macro-objects. For this, we considered a cavity with perfectly reflecting mirrors where one of the mirrors was oscillating. Our desired outcome was to show that we can entangle classical macro-objects with micro-objects, such as a mechanical mirror and a photon, using quantum optics. The entanglement of classical objects would...
The geophysical-geological component of the RAF (Radagost Astral Forge) analog space base project aimed to investigate anomalies in the Earth's magnetic field. Mining waste heaps presented particularly intriguing research subjects due to spontaneous combustion, which caused magnetic anomalies and the formation of new minerals. These heaps had been insufficiently studied thus far, and this...
Domain walls in ferroelectric materials are an exciting new type of graphene-like 2D functional interface with properties that can differ significantly from the surrounding bulk. Like graphene, they can display various transport regimes, such as semiconducting, metallic, and even superconducting, behaviour. Domain walls are a part of the ferroelectric microstructure (they are interfaces that...
Superconductors exhibit a nonlinear interaction with an applied light, which can resonantly excite the collective amplitude (Higgs) mode. Here we study light-induced dynamics of layered superconductors, where each layer is coupled to adjacent layers via the Josephson coupling and the first few layers near the surface are driven by an in-plane-polarized light. We study the system under the...
The monitoring methods, prediction drought and precipitation distribution, the possibilities of their application in Georgia are used in proposed work. Standardized Precipitation Index (SPI) was selected as the research parameter because it better expresses the pronounced drought trends than the Standardized Precipitation Evapotranspiration Index (SPEI). Using prediction model and algorithm,...
In this study we calculated the center of mass and the geometric center of México’s territory profile based on maps that represent the country’s terrain using color codes in the maps, allowing for a clear visualization of México’s topography. We wrote the code in Python to perform the calculations and obtained the country’s topographic data and land border profile from public databases.
The...
Since their advent in the 1950s, Numerical Weather Prediction (NWP) models have used structured lat-lon mesh grids for forecasting, which subdivide the 2D (horizontal) global surface into square grid cells of equal size. This has historically resulted in issues such as unnecessarily high resolution at the poles (the ‘pole problem’), and flow distortions at nest boundaries with the use of...
Polyethylene is by far the most widely used and produced plastic in the world, mainly for packaging. However, polyethylene poses environmental problems as it does not degrade in the natural environment. Therefore, in view of the current and future environmental crisis, it is necessary to introduce certain alternatives.
The aim of the present work is to investigate different modified...
Aggregates of lipids in living systems can range over several magnitudes in their size. The first choice of and most trustable modelling certainly is molecular dynamics, where a system is fully populated by molecules made from individual, interacting particles, providing by their trajectories aggregate behavior and means for detailed study. For the resource-constrained lipid scientist though,...
With the upcoming demand for "Internet of Things" (IoT) devices, intensive research has been conducted on sustainable power solutions for these devices. IoT devices utilize sensors embedded in everyday objects, such as light switches, doors, and vehicles, to collect and communicate data over the internet. One promising method to power these devices is indoor photovoltaics (PVs)....
How micro/nanoplastics affect human health is the topic of my Bachelor's thesis that I'm just starting. Since I'm at the beginning of research and writing, the topic may become more specific during the process, e.g. how plastic waste affects the respiratory system or neurology.
We determine the masses and residues of the ground and excited spin 1/2 baryons consist of two heavy b or
c quark utilizing the QCD sum rule formalism. In the calculations, we consider the nonperturbative
operators up to ten mass dimensions in order to increase the accuracy compared to the previous calculations. We report the obtained results for both the symmetric and antisymmetric currents...
Python has emerged as a powerful tool in the field of physics, revolutionizing both research and education. My poster will highlight several key applications of Python that make it indispensable for physicists today. Firstly, Python excels in numerical simulations, including Molecular Dynamics (MD), Computational Fluid Dynamics (CFD), and Monte Carlo Simulations, allowing scientists to model...
Since the 2010 the Proton Radius Puzzle appeared and many groups all around the world are trying to solve it. There are two main ways to solve it - hydrogen spectroscopy and muonic hydrogen spectroscopy.
Scientists of Petersburg Institute of Nuclear Physics are constructing the new experimental setup to measure the proton radius via hydrogen spectroscopy. The experiment is called PRES and is...
KM3NeT is a research infrastructure housing the next generation of Cherenkov neutrino telescopes. It consists of two detectors with similar technology currently under construction in the Mediterranean Sea: ARCA (off-shore Sicily, Italy) and ORCA (off-shore Toulon, France) dedicated to Astroparticle and Oscillation Research with Cosmics in the Abyss, respectively. ARCA will instrument 1 Gton of...
Neutrons play a dominant role in the stellar nucleosynthesis of heavy elements. We review a scheme for the experimental determinations of neutron-induced reaction cross sections using a high-intensity neutron source based on the 18O(p,n)18F reaction with an 18O-water target at SARAF’s upcoming Phase II. The quasi-Maxwellian neutron spectrum with effective thermal energy kT ≈ 5 keV,...
Hagen-Poiseullie flow is a very widespread type of flow in nature. However, in astronomy and astrophysics.we often encounter with relativistic Hagen - Poiseullie flows. The task is to study this flow and its acoustic effects in the relativistic limits and compare it to the nonrelativistic flows.
Magnetostriction is one of the most important properties of ferromagnetic materials, as it couples magnetic and mechanical effects, therefore, mechanical stress is induced under the influence of a magnetic field. In our case, for instance, we put Ferrite rod in the alternating magnetic field that is produced by regular coil and observe its behavior changing frequency of the magnetic field. As...
The purpose of the research is to study kinematically complex flows in which the bond of acoustic and gravitational modes and their mutual transformation takes place. Gravitational waves appear along with acoustic waves in a stratified fluid, which complicates the characterization of fluid motion. We described the background flow through a shear matrix of velocity gradients in order to study...
Ultra-peripheral collisions (UPC) involve collisions at impact parameters large enough, such that there are no hadronic interactions - ions interact only electromagnetically, either via photonuclear or two-photon interactions. UPCs of heavy ions at the LHC are the energy frontier for electromagnetic interactions. They provide a unique opportunity to study various physics phenomena from a...
The talk will explore the application of X-ray fluorescence analysis to the investigation of archaeological samples of plaster and mortar from the ancient roman villages of Chhim and Jiyeh, Lebanon. The topic of statistical analysis of results (based on PCA and hierarchical analysis) and their interpretation will be discussed, i.e., how to translate differences in the chemical composition of...
Reconceptualizing quantum mechanics through the lens of symplectic manifolds, this research introduces a transformative geometric formulation that challenges and extends the traditional framework. At the core of this approach is the innovative use of differential geometry and symplectic topology, which are indispensable for our comprehensive quantum mechanical model.
Addressing pioneering...
Aims: To evaluate the maximal possible energies of electrons accelerated by the magnetic field of a rotating black hole. We investigate how the range of maximal possible energies and its main constraining factor depend on the mass of the black hole.
Methods: To model the acceleration of the electron on the...
Liouville theory, a prominent example of exactly solvable models in two-dimensional conformal field theory (CFT), is essential for understanding quantum field theories and statistical mechanics in lower dimensions. It also plays a crucial role in non-critical string theory for formulating quantum gravity.
This work focuses on Liouville theory in a 1+1 dimensional cylindrical geometry, aiming...
Harmonic functions and harmonic forms are one of the most important objects of mathematical and theoretical physics. For example, they are widely used in field theory, determining the strength and induction of some electrostatic and magnetostatic fields. As a rule, harmonic functions are defined on multidimensional Euclidean and pseudo-Euclidean spaces. Due to the additional symmetries of the...
The visible matter in the universe predominantly consists of plasma. Plasma flows are inherently dynamic and often characterized by non-uniform velocity patterns. This differential motion results in a velocity gradient, which gives rise to shear. Shear flows are omnipresent in many astrophysical scenarios such as planetary atmospheres, the solar heliosphere, the accretion and protogalactic...
I have participated in two PLANCKS preliminaries and one international final, since then I have been honoured to have organised twice as many PLANCKS events as I participated in. As a member of the UK and Ireland's PLANCKS Advisory Board, my role is to provide guidance to each year's OC and take the lead in organising the exam paper.
In this talk, the audience can choose what area of the...
Evaluating systematic uncertainties takes a significant amount of time and effort in many physics analyses. During their lab courses, many students learn to identify possible sources of systematic uncertainties and how to quantify them. However, they are usually not exposed to handling them using statistical methods. In this tutorial, I will offer a brief overview on parameter estimation with...
