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Physics, Volume 7, Issue 3

2025 September - 20 articles

Cover Story: This work presents a pedagogical derivation of the one-dimensional ray equation directly from Snell’s law. While the ray equation is usually obtained from Fermat’s principle via variational calculus, this study starts with Snell’s law, typically taught for sharp interfaces, and extends it to continuous refractive media. Two methods are introduced—one using Dyson’s expression for layered media and another based on a differential form of Snell’s law. As an application, we provide an analytical solution for the light trajectory in an inferior mirage. This approach offers students an accessible bridge between elementary geometric optics and the more general ray equation. View this paper
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Articles (20)

  • Article
  • Open Access
997 Views
15 Pages

Measurement Uncertainty and Dense Coding in a Spin-Star Network

  • Mina Shiri,
  • Mehrdad Ghominejad,
  • Mohammad Reza Pourkarimi and
  • Saeed Haddadi

16 September 2025

Measurement uncertainty limits how precisely information can be extracted from quantum systems due to inherent quantum indeterminacy. On the other hand, dense coding capacity quantifies the amount of classical information that can be sent using share...

  • Article
  • Open Access
1 Citations
1,248 Views
25 Pages

16 September 2025

We compare the semiclassical and quantum predictions for the unitary dynamics of a two-level atom interacting with a single-mode electromagnetic field under parametric modulation of the atomic parameters in the regime of multiphoton atom–field...

  • Review
  • Open Access
1 Citations
985 Views
24 Pages

12 September 2025

The paper presents a survey of some dynamical transitions in nonequilibrium trapped Bose-condensed systems subject to the action of alternating fields. Nonequilibrium states of trapped systems can be implemented in two ways: resonant and nonresonant....

  • Communication
  • Open Access
1,076 Views
8 Pages

Generation of Zonal Flows in a Rotating Self-Gravitating Fluid

  • Volodymyr M. Lashkin and
  • Oleg K. Cheremnykh

8 September 2025

We demonstrate the possibility of generation of zonal (shear) flows in a rotating self-gravitating fluid. A set of equations describing the nonlinear interaction between a large-scale zonal flow (ZF) and a small-scale drift-gravity wave is derived. A...

  • Communication
  • Open Access
934 Views
7 Pages

5 September 2025

The production rate of charm quarks in strongly interacting matter is investigated under various conditions, employing the effective quasiparticle framework. This phenomenological approach treats quarks and gluons as quasiparticles with dynamically g...

  • Article
  • Open Access
1 Citations
1,479 Views
22 Pages

1 September 2025

We consider a multi-species mixture of interacting bosons, N1 bosons of mass m1, N2 bosons of mass m2, and N3 bosons of mass m3, in a harmonic trap with frequency ω. The corresponding intra-species interaction strengths are λ11, λ...

  • Article
  • Open Access
2,550 Views
18 Pages

15 August 2025

The Planck constant is a fundamental parameter of nature that appears in the description of phenomena on a microscopic scale. Its origin is associated with an explanation of the distribution of the blackbody spectrum performed by Max Planck. This con...

  • Article
  • Open Access
809 Views
21 Pages

5 August 2025

Semiclassical (SC) approximations for various representations of a quantum state are constructed on a single (Lagrangian) surface in the phase space but such surface is not available for chaotic systems. An analogous evolution surface underlies SC re...

  • Article
  • Open Access
1,427 Views
13 Pages

Energy Dispersion Relationship and Hofstadter Butterfly of Triangle and Rectangular Moiré Patterns in Tight Binding States

  • Ziheng Li,
  • Jiangwei Liu,
  • Xiaoxiao Zheng,
  • Yu Sun,
  • Nan Han,
  • Liang Wang,
  • Muyang Li,
  • Lei Han,
  • Safia Khan and
  • Hu Li
  • + 3 authors

5 August 2025

Herein, the energy dispersion relationship and the density of states of triangular and rectangular moiré patterns are investigated using a tight binding model. Their characteristics of Hofstadter butterflies under different magnetic fields are...

  • Article
  • Open Access
1,869 Views
26 Pages

PREFACE: A Search for Long-Lived Particles at the Large Hadron Collider

  • Burak Hacisahinoglu,
  • Suat Ozkorucuklu,
  • Maksym Ovchynnikov,
  • Michael G. Albrow,
  • Aldo Penzo and
  • Orhan Aydilek

1 August 2025

The Standard Model (SM) fails to explain many problems (neutrino masses, dark matter, and matter–antimatter asymmetry, among others) that may be resolved with new particles beyond the SM. No observation of such new particles may be explained ei...

  • Article
  • Open Access
1 Citations
2,986 Views
15 Pages

1 August 2025

We report calculations of charging effect on an isolated conductor, gold nanosphere, under electron beam bombardment at primary electron energies of 0.1–10 keV based on an up-to-date Monte Carlo simulation method. The calculations consider elec...

  • Article
  • Open Access
1,054 Views
14 Pages

Exploring Hidden Sectors with Two-Particle Angular Correlations at Future e+e Colliders

  • Emanuela Musumeci,
  • Adrián Irles,
  • Redamy Pérez-Ramos,
  • Imanol Corredoira,
  • Edward Sarkisyan-Grinbaum,
  • Vasiliki A. Mitsou and
  • Miguel Ángel Sanchis-Lozano

22 July 2025

Future e+e colliders are expected to play a fundamental role in measuring Standard Model (SM) parameters with unprecedented precision and in probing physics beyond the SM (BSM). This study investigates two-particle angular correlation distribu...

  • Communication
  • Open Access
1,080 Views
11 Pages

17 July 2025

The spin polarization of current in a conventional ferromagnetic and semiconductor-based Rashba spin–orbit interaction (RSOI) in an infinite two-dimensional system and the electrical properties of the junction are described using the square lat...

  • Review
  • Open Access
7 Citations
2,566 Views
32 Pages

15 July 2025

The emergence of multidrug-resistant (MDR) bacteria and biofilm-associated infections has created a significant hurdle for conventional antibiotics, prompting the exploration of alternative strategies. Photodynamic therapy (PDT), a technique that uti...

  • Article
  • Open Access
2 Citations
3,472 Views
12 Pages

Terahertz Optoelectronic Properties of Monolayer MoS2 in the Presence of CW Laser Pumping

  • Ali Farooq,
  • Wen Xu,
  • Jie Zhang,
  • Hua Wen,
  • Qiujin Wang,
  • Xingjia Cheng,
  • Yiming Xiao,
  • Lan Ding,
  • Altayeb Alshiply Abdalfrag Hamdalnile and
  • Francois M. Peeters
  • + 1 author

14 July 2025

Monolayer (ML) molybdenum disulfide (MoS2) is a typical valleytronic material which has important applications in, for example, polarization optics and information technology. In this study, we examine the effect of continuous wave (CW) laser pumping...

  • Communication
  • Open Access
1 Citations
3,374 Views
9 Pages

Derivation of the Ray Equation from Snell’s Law

  • Carmen Toro-Castillo,
  • Joel Cervantes-Lozano,
  • David I. Serrano-García and
  • Héctor O. González-Ochoa

The one-dimensional ray equation, the differential description of Fermat’s principle, is deduced directly from Snell’s law using two methods. In the first method, we obtain the ray equation from a differential equation relating the spatia...

  • Article
  • Open Access
1,117 Views
19 Pages

Quantum Scattering by Multiple Slits—A Lippmann–Schwinger Approach

  • Rafael M. Fortiny,
  • Matheus E. Pereira and
  • Alexandre G. M. Schmidt

We investigate the non-relativistic scattering of a plane wave by a vertical segment formulating the problem in terms of the Lippmann–Schwinger equation in two spatial dimensions. Adjusting the coupling strength function we show how to implemen...

  • Article
  • Open Access
2 Citations
1,082 Views
19 Pages

25 June 2025

In this paper, we analyze the application of an analytical gluon distribution based on double-asymptotic scaling to the photoproduction of vector mesons in coherent pp, pA, and AA collisions at LHC energies, using the color dipole formalism. Predicti...

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Physics - ISSN 2624-8174