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2020-11-20

The Maxwell Stress Tensor and Electromagnetic Momentum

Artice Davis,

Professor Artice Davis

San Jose State University

USA

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Vladimir Onoochin

Dr. Vladimir Onoochin

Sirius 3A Nikoloyamski Lane

Russia

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Progress In Electromagnetics Research Letters, Vol. 94, 151-156, 2020

doi:10.2528/PIERL20081305 | Google Scholar

Abstract

In this paper, we discuss two well known definitions of electromagnetic momentum, ρA and \epsilon₀[E x B]. We show that the former is preferable to the latter for several reasons which we will discuss. Primarily, we show in detail|and by example|that the usual manipulations used in deriving the expression \epsilon₀[E x B] have a serious mathematical flaw. We follow this by presenting a succinct derivation for the former expression. We feel that the fundamental definition of electromagnetic momentum should rely upon the interaction of a single particle with the electromagnetic field. Thus, it contrasts with the definition of momentum as \epsilon₀[E x B] which depends upon a (defective) integral over an entire region, usually all space.

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Artice Davis, and Vladimir Onoochin, "The Maxwell Stress Tensor and Electromagnetic Momentum," Progress In Electromagnetics Research Letters, Vol. 94, 151-156, 2020.
doi:10.2528/PIERL20081305

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