Results 11 to 20 of about 591 (43)
Electromagnetic Potential in Pre-Metric Electrodynamics: Causal Structure, Propagators and Quantization [PDF]
An axiomatic approach to electrodynamics reveals that Maxwell electrodynamics is just one instance of a variety of theories for which the name electrodynamics is justified.
Pfeifer, Christian, Siemssen, Daniel
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An analog fluid model for some tachyonic effects in field theory
We consider the sound radiation from an acoustic point-like source moving along a supersonic ("space-like") trajectory in a fluid at rest. We call it an acoustic "tachyonic" source. We describe the radiation emitted by this supersonic source.
Abrikosov A. A. +16 more
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Classical diamagnetism, magnetic interaction energies, and repulsive forces in magnetized plasmas
The Bohr-van Leeuwen theorem is often summarized as saying that there is no classical magnetic susceptibility, in particular no diamagnetism. This is seriously misleading.
Alfvén Hannes +24 more
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We claim that the anti-relativistic statement in de Sangro et al., Eur. Phys. J. C 75, 137 (2015) that the Coulomb field of a moving charge propagates rigidly with it, cannot as a matter of fact be inferred from the measurements reported in that ...
Shabad, Anatoly
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Axion Electrodynamics from Infeld-van der Waerden formalisms
In this article we will explore the spacetime phase structure inside the Infeld-van der Waerden formalisms, showing that Maxwell's theory in this scenario leads to an axion-like phase electrodynamics, which suggests that this phase may originate the ...
Fernandes-Silva, A. +1 more
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The physics of angular momentum radio
Wireless communications, radio astronomy and other radio science applications are predominantly implemented with techniques built on top of the electromagnetic linear momentum (Poynting vector) physical layer.
Ravanelli, R. A. +4 more
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Scattering in plane-wave backgrounds: infra-red effects and pole structure
We consider two aspects of scattering in strong plane wave backgrounds. First, we show that the infra-red divergences in elastic scattering depend on the structure of the background, but can be removed using the usual Bloch-Nordsieck approach. Second, we
Ilderton, Anton, Torgrimsson, Greger
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First-order classical Lagrangians for the nonminimal Standard-Model Extension
In this paper, we derive the general leading-order classical Lagrangian covering all fermion operators of the nonminimal Standard-Model Extension (SME).
Reis, J. A. A. S., Schreck, M.
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Corrections to Laser Electron Thomson Scattering [PDF]
We discuss classical and quantum corrections to Thomson scattering between an electron and a laser. For radiation reaction, nonlinear, and quantum effects we identify characteristic dimensionless parameters in terms of which we determine the leading ...
Heinzl, Thomas, Ilderton, Anton
core
Twist deformations of Newtonian Schwarzschild-(Anti-)de Sitter classical system
In this article we provide three new twist-deformed Newtonian Schwarzschild-(Anti-)de Sitter models. They are defined on the Lie-algebraically as well as on the canonically noncommutative space-times respectively.
Daszkiewicz, Marcin
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