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- Title
Self-consistent theory for a plane wave in a moving medium and light-momentum criterion.
- Authors
Wang, Changbiao
- Abstract
A self-consistent theory is developed based on the principle of relativity for a plane wave in a moving non-dispersive, lossless, non-conducting, isotropic, uniform medium. A light-momentum criterion is set up for the first time, which states that the momentum of light in a medium is parallel to the wave vector in all inertial frames of reference. By rigorous analysis, novel basic properties of the plane wave are exposed: ( i) Poynting vector does not necessarily represent the electromagnetic (EM) power flow when a medium moves; ( ii) Minkowski light momentum and energy constitute a Lorentz four-vector in a form of single EM-field cell or single photon, and Planck constant is a Lorentz invariant; ( iii) there is no momentum transfer taking place between the plane wave and the uniform medium, and the EM momentum conservation equation cannot be uniquely determined without resorting to the principle of relativity; and ( iv) when the medium moves opposite to the wave vector at a faster-than-dielectric light speed, negative frequency and negative EM energy density occur, with the plane wave becoming left-handed. Finally, a new physics of so-called 'intrinsic Lorentz violation' is presented as well.
- Subjects
SELF-consistent field theory; PLANE wavefronts; PRINCIPLE of relativity (Physics); PLANCK'S constant; LORENTZ invariance; ELECTROMAGNETIC waves
- Publication
Canadian Journal of Physics, 2015, Vol 93, Issue 12, p1510
- ISSN
0008-4204
- Publication type
Article
- DOI
10.1139/cjp-2015-0167