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Classical Physics papers — page 29

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Energy-Momentum Tensor and Related Experimental Analysis of Electromagnetic Waves in Media
We find that the energy-momentum tensor of electromagnetic waves in media is very similar to that of ordinary fluids, and concepts such as density, pressure, and energy transfer rate can be similarly…
Gui-Xiong LiangAug 24, 2023
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The massive side of the electromagnetic waves
Stationary electromagnetic waves display aspects that are shared with massive particles, since the energy and momentum contained in a volume of sides equal to the wavelengths form a non-zero…
Rafael FerraroAug 24, 2023
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A family of repulsive neutral conductor geometries via abstract vector spaces
Recently it was shown that it is possible for a neutral, isolated conductor to repel a point charge (or, a point dipole). Here we prove this fact using general properties of vectors and operators in…
Julian J. Dukes, Brian ShotwellAug 22, 2023
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A fully-coupled nonlinear magnetoelastic thin shell formulation
A geometrically exact dimensionally reduced order model for the nonlinear deformation of thin magnetoelastic shells is presented. The Kirchhoff-Love assumptions for the mechanical fields are…
Abhishek Ghosh, Andrew McBride, Zhaowei Liu et al.Aug 18, 2023
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Observation of Non-Hermitian Skin Effect in Thermal Diffusion
The paradigm shift of the Hermitian systems into the non-Hermitian regime profoundly modifies the inherent topological property, leading to various unprecedented effects such as the non-Hermitian…
Yun-Kai Liu, Pei-Chao Cao, Minghong Qi et al.Aug 17, 2023
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Effective Action for Dissipative and Nonholonomic Systems
We show that the action of a dynamical system can be supplemented by an effective action for its environment to reproduce arbitrary coordinate dependent ohmic dissipation and gyroscopic forces. The…
Afshin Besharat, Jury Radkovski, Sergey SibiryakovAug 16, 2023
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Analytical solution of the Sommerfeld-Page equation
The Sommerfeld-Page equation describes the non-relativistic dynamics of a classical electron modeled by a sphere of finite size with a uniform surface charge density. The Sommerfeld-Page equation is…
Zurab K. SilagadzeAug 16, 2023
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Lienard-Wiechert Potentials due to a 'classically' spinning point-charge in Non-Relativistic arbitrary motion
Li'enard-Wiechert potentials have been derived for a moving and 'classically' spinning point-charge; assuming it to be a small rigid charged-sphere in combined non-relativistic…
Nikhil D. HadapAug 15, 2023
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High-frequency homogenization for periodic dispersive media
High-frequency homogenization is used to study dispersive media, containing inclusions placed periodically, for which the properties of the material depend on the frequency (Lorentz or Drude model…
Marie Touboul, Benjamin Vial, Raphaël Assier et al.Aug 14, 2023
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The average transmitted wave in random particulate materials
Microwave remote sensing is significantly altered when passing through clouds or dense ice. This phenomenon isn't unique to microwaves; for instance, ultrasound is also disrupted when traversing…
Aris Karnezis, Paulo S. Piva, Art L. GowerAug 13, 2023
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Introducing a general method for solving electromagnetic radiation problem in an arbitrary linear medium
Numerical transfer matrices have been widely used in the study of wave propagation and scattering. These may be viewed as descretizations of a recently introduced fundamental notion of transfer…
Farhang Loran, Ali MostafazadehAug 12, 2023
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On the Galilean covariance of the d'Alembert equation for acoustic phenomena
The covariance of the d'Alembert equation for acoustic phenomena -- which is a mechanical wave equation -- under the conventional Galilean transformation is demonstrated without the need to…
Francisco Caruso, Vitor Oguri, Felipe SilveiraAug 11, 2023
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3D front tip fields in creeping solids under constraint effects: a higher-order asymptotic solution
As one of the most important topics studied in creep fracture mechanics, mechanics fields at three-dimensional (3D) sharp V-notches and crack tip have drawn tremendous attentions. With many years…
Weichen Kong, Yanwei Dai, Yinghua LiuAug 5, 2023
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Radiation reaction on an accelerating point charge
A point charge accelerating under the influence of an external force emits electromagnetic radiation that reduces the increase in its mechanical energy. This causes a reduction in the particle's…
Jerrold FranklinAug 4, 2023
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Revision of Sabine's reverberation theory by following a different approach to Eyring's theory
The room acoustic theory was established based on Sabine's reverberation theory. However, in Sabine's theory, the reverberation time does not reach zero, even if the absolute absorption…
Toshiki HanyuAug 4, 2023
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A pedestrian approach to Einstein's formula E=mc2 with an application to photon dynamics
There are several ways to derive Einstein's celebrated formula for the energy of a massive particle at rest, E=mc2. Noether's theorem applied to the relativistic Lagrange function provides…
A. V. Nenashev, S. D. Baranovskii, F. GebhardAug 4, 2023
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Backscattering reduction in a sharply bent water wave channel
We study theoretically and experimentally how to reduce the backscattering of water waves in a channel with multiple turns. We show that it is not only possible to cancel backscattering but also to…
Samantha Kucher, Adrian Koźluk, Philippe Petitjeans et al.Aug 3, 2023
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Arbitrariness and Usefulness of the Expressions of Elastic wave's Energy, Momentum and Angular Momentum
Elastic angular momentum is an emerging field, with some controversies on the correct field-theory expressions and the decomposition of longitudinal and transverse components. Motivated by the recent…
Zi-Wei Chen, Bang-Hui Hua, Xiang-Song ChenAug 2, 2023
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Dual-phase-lag heat conduction analysis of a three-dimensional finite medium heated by a moving laser beam with circular or annular cross-section
We analyze the non-Fourier dual-phase-lag heat conduction process in a three-dimensional medium heated by a moving circular or annular laser beam, which is modeled by a set of point heat sources in…
Kaiyuan Chen, Longkun Fan, Zhicheng Hu et al.Aug 1, 2023
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Body on the hemispherical hill with friction and drag force. A classical problem becoming more realistic with exact and perturbative approaches
I discuss the influence of adding the air resistance and the kinetic friction to the classical mechanics homework-problem: finding the motion of a body sliding down a hemispherical hill. For a…
Gniewoj MichalewskiAug 1, 2023
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Constructing Berry-Maxwell equations with Lorentz invariance and Gauss' law of Weyl monopoles in 4D energy-momentum space
We present the construction of a reciprocal electromagnetic field by extending the Berry curvatures into four-dimensional (4D) energy-momentum space. The resulting governing equations, termed…
Yiming Pan, Ruoyu YinJul 30, 2023
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Time-space bi-fractional drift-diffusion equation for anomalous electrochemical transport
The Debye-Falkenhagen differential equation is commonly used as a mean-field macroscopic model for describing electrochemical ionic drift and diffusion in dilute binary electrolytes when subjected to…
Anis Allagui, Georgii Paradezhenko, Anastasiia Pervishko et al.Jul 30, 2023
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Broadband directional invisibility
The discovery of unidirectional invisibility and its broadband realization in optical media satisfying spatial Kramers-Kronig relations are important landmarks of non-Hermitian photonics. We offer a…
Farhang Loran, Ali MostafazadehJul 29, 2023
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Exact invariants for a class of three-dimensional time-dependent classical Hamiltonians
An exact invariant is derived for three-dimensional Hamiltonian systems of N particles confined within a general velocity-independent potential. The invariant is found to contain a time-dependent…
Jürgen Struckmeier, Claus RiedelJul 29, 2023
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The Treatment of conformable systems with second class constraints
In this work, a conformable singular system with second-class constraints is discussed. The conformable Poisson bracket (CDB) of two functions is defined. and, the Dirac theory is developed to be…
Eqab. M. Rabei, Mohamed. Al-Masaeed, Dumitru BaleanuJul 29, 2023
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