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The theory of relativity, which was proposed in the beginning of the 20th century, applies to particles and frames of reference whose velocity is less than the velocity of light. In this paper we shall show how this theory can be extended…

General Physics · Physics 2012-01-13 Ricardo S. Vieira

The speed of light ($c$) in a vacuum is independent on a choice of frames to describe the propagation, according to the theory of relativity. We consider how light is characterised in a material, where the speed of light is different from…

Optics · Physics 2024-06-07 Shinichi Saito

The present work shows that through a suitable change of variables relativistic dynamics can be mapped to light propagation in a non-homogeneous medium. A particle's trajectory through the modified space-time is thus formally equivalent to…

Optics · Physics 2007-05-23 J. B. Almeida

In the case of the one-electron Dirac equation with a point nucleus the Virial Theorem (VT) states that the ratio of the kinetic energy to potential energy is exactly $-1$, a ratio that can be an independent test of the accuracy of a…

Atomic Physics · Physics 2021-09-28 Charlotte Froese Fischer , Michel Godefroid

The nature of 'time', 'space' and 'reality' are to large extent dependent on our interpretation of Special (SRT) and General Relativity Theory (GRT). In SRT essentially two distinct interpretations exist; the "geometrical" interpretation by…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Jan , Broekaert

The existence of gravitational radiation is a natural prediction of any relativistic description of the gravitational interaction. In this chapter, we focus on gravitational waves, as predicted by Einstein's general theory of relativity.…

General Relativity and Quantum Cosmology · Physics 2017-04-26 Alexandre Le Tiec , Jérôme Novak

The gravitational field of a laser pulse, although not detectable at the moment, comes with a peculiar feature which continues to attract attention; cause and effect propagate with the same speed, that of light. A particular result of this…

General Relativity and Quantum Cosmology · Physics 2017-04-12 Dennis Rätzel , Martin Wilkens , Ralf Menzel

In V-T theory the atomic motion is harmonic vibrations in a liquid-specific potential energy valley, plus transits, which move the system rapidly among the multitude of such valleys. In its first application to the self intermediate…

Statistical Mechanics · Physics 2017-01-04 Duane C. Wallace , Eric D. Chisolm , Giulia De Lorenzi-Venneri

Gamma-ray bursts are the most luminous explosions in the Universe, and their origin as well as mechanism are the focus of intense research and debate. More than three decades since their serendipitous discovery, followed by several…

High Energy Astrophysical Phenomena · Physics 2011-12-06 P. N. Bhat , S. Guiriec

This paper is a first presentation of a new approach of physics that we propose to refer as the Absolute Relativity Theory (ART) since it refutes the idea of a pre-existing space-time. It includes an algebraic definition of particles,…

Mathematical Physics · Physics 2009-08-19 Jean-Marc Oury , Bruno Heintz

The analysis of the Doppler effect for photons in rotating systems, studied using the M\"ossbauer effect, confirms the general conclusions of a previous paper dedicated to experiments with photons emitted/absorbed by atoms/nuclei in…

History and Philosophy of Physics · Physics 2015-02-04 Giuseppe Giuliani

The spin Hall effect of light attracted enormous attention in the literature due to the ongoing progress in developing of new optically active materials and metamaterials with non-trivial spin-orbit interaction. Recently, it was shown that…

High Energy Physics - Theory · Physics 2019-04-01 Xu-Guang Huang , Andrey V. Sadofyev

A mechanical model was developed to describe the behaviour of a device able to transform vibrations into rotations, named Vibrot. The theoretical model, developed in the newtonian formulation of mechanics, was able to reproduce…

Soft Condensed Matter · Physics 2023-02-10 Harol Torres , Victor M. Freixas , Danyer Pérez Adán

In 2007 we were part of a team that discovered the so-called ``Lorimer Burst'', the first example of a new class of objects now known as fast radio bursts (FRBs). These enigmatic events are only a few ms in duration and occur at random…

High Energy Astrophysical Phenomena · Physics 2024-06-12 Duncan R. Lorimer , Maura A. McLaughlin , Matthew Bailes

V-T theory is constructed in the many-body Hamiltonian formulation, and differs at the foundation from current liquid dynamics theories. In V-T theory the liquid atomic motion consists of two contributions, normal mode vibrations in a…

Statistical Mechanics · Physics 2016-05-04 Duane C. Wallace , Giulia De Lorenzi-Venneri , Eric D. Chisolm

The Gamma-Ray Bursts - GRBs are one of the most energetic astronomical events in the universe that have not yet an adequate explanation of what kind of mechanism is carried out. This question motivates the astronomical community to do…

High Energy Astrophysical Phenomena · Physics 2013-07-05 Camilo Delgado-Correal

Very special relativity (VSR) keeps the main features of special relativity but breaks rotational invariance. It can not be regarded as a fundamental symmetry of nature because many observed phenomena depend on the existence of Lorentz…

High Energy Physics - Theory · Physics 2014-09-22 Jorge Alfaro , Victor O. Rivelles

Contemporary observational and theoretical studies on the temporal nature of microscopic measurements renewed the discussion about the fundamental constants, leading to the possibility of light speed variation and superluminal pulse…

General Physics · Physics 2007-05-23 R Assumpcao

Fractional-order vector vortex beams are recently demonstrated to be new carriers of fractional-strength optical vortices. However, why can those new vortex beams formed by the combination of both unstable states propagate stably in free…

Optics · Physics 2022-08-04 Xiaoyu Weng , Yu Miao , Yang Li , Xiangmei Dong , Xiumin Gao , Songlin Zhuang

What is the quantum system? Consider the wavefunction of the electron, what we call single particle wave-function and assume that it contains N wave packets. If we pass all the wave packets through an electric field, all are deflected, as…

Quantum Physics · Physics 2021-07-14 Sofia Wechsler
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