2001/02/26 by Radi I. Khrapko, R. I. Khrapko, Khrapko, R. I.
Computer Science · Physics and Astronomy · #Classical Physics (physics.class-ph) #Computational Physics and Python Applications #FOS: Physical sciences #Quantum and Classical Electrodynamics #Relativity and Gravitational Theory #physics.class-ph
paper · pdf · doi:10.48550/arxiv.physics/0102084
LaTeX, 12 pages, submitted to "J. Phys. A". I include new results which confirm the previous version
openalex publication_date 2001/02/26 · arxiv created 2002/08/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A true energy-momentum tensor is unique and does not admit an addition of a term. The true electrodynamics' energy-momentum tensor is the Maxwell-Minkowski tensor. It cannot be got with the Lagrange formalism. The canonical energy-momentum and spin tensors are out of all relation to the physical reality. The true electrodynamics' spin tensor is not equal to a zero. So, electrodynamics' ponderomotive action comprises a force from the Maxwell stress tensor and a torque from the spin tensor. A gauge non-invariant expression for the spin tensor is presented and is used for a consideration of a circularly polarized standing wave. A circularly polarized light beam carries a spin angular momentum and an orbital angular momentum. So, we double the beams angular momentum. The Beths experiment is considered.