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arXiv physics/0102084physics.class-ph
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真正的能量动量张量是独一无二的。电动力学自旋张量不为零

True energy-momentum tensors are unique. Electrodynamics spin tensor is not zero

R. I. Khrapko

摘要:

一个真正的能量动量张量是唯一的,不允许增加一个项。真正的电动力学的能量动量张量是麦克斯韦-闵可夫斯基张量。它不能用拉格朗日形式主义得到。正则能量动量张量和自旋张量与物理实在无关。真正的电动力学的自旋张量不等于零。因此,电动力学的有质动力作用包括来自麦克斯韦应力张量的力和来自自旋张量的扭矩。本文给出了自旋张量的规范非不变表达式,并用于考虑圆极化驻波。圆偏振光束携带自旋角动量和轨道角动量。所以,我们把光束的角动量加倍。Beth实验被认为是。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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