Can the gamma-ray bursts travelling through the interstellar space be explained without invoking the drastic assumption of Lorentz invariance violation?

Чайчиан, Масуд; Brevik, I.; Oksanen, Markku

doi:10.22323/1.390.0595

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2021

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“…The existence of them was suggested by Helen Quinn and Roberto Peccei in 1977, in connection with the strong charge-parity (CP) problem in quantum chromodynamics (QCD), and the subject has since attracted considerable interest. Some recent references to axion electrodynamics are [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Axion Electrodynamics and the Axionic Casimir Effect

Brevik

2021

Universe

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A general scheme for axion electrodynamics is given, in which a surrounding medium of constant permittivity and permeability is assumed. Then, as an application, we provide simple numerical estimates for the electromagnetic current density produced by the electrically neutral time-dependent axions a=a(t) in a strong magnetic field. As is known, the assumption a=a(t) is common under astrophysical conditions. In the third part of the paper, we consider the implications by instead assuming an axion amplitude a(z) depending on one coordinate z only. If such an axion field is contained within two large metal plates, one obtains an axion-generated splitting of the eigenmodes for the dispersion relation. These modes yield equal, though opposite, contributions to the pressure on the plates. We calculate the magnitude of the splitting effect in a simple one-dimensional model.

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