MOMENTUM OF AN ELECTROMAGNETIC WAVE IN TIME-VARYING DIELECTRIC MEDIA

Authors

  • Karen K. Grigoryan Chair of Ecology and Nature Protection, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:A/2021.55.2.148

Keywords:

time-varying dielectric constant, Abraham–Minkowski controversy, conservation of momentum, electromagnetic waves

Abstract

In the context of the Abraham–Minkowski controversy, the problem of the propagation of electromagnetic waves in a linear dielectric medium with a time-varying dielectric constant is considered. It is shown that the momentum of an electromagnetic wave in the form of Minkowski is preserved with an instantaneous change in the dielectric permittivity of the medium. At the same time, the Abraham momentum is not conserved, despite the spatial homogeneity of the problem. This circumstance is interpreted as a manifestation of the Abraham force.

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Published

2021-08-30

How to Cite

Grigoryan, K. K. (2021). MOMENTUM OF AN ELECTROMAGNETIC WAVE IN TIME-VARYING DIELECTRIC MEDIA. Proceedings of the YSU A: Physical and Mathematical Sciences, 55(2 (255), 148–152. https://doi.org/10.46991/PYSU:A/2021.55.2.148

Issue

Section

Short Communications