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On redefinitions of the energy momentum tensor

✍ Scribed by Danilo Villarroel

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
647 KB
Volume
89
Category
Article
ISSN
0003-4916

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✦ Synopsis

We analyse some redefinitions of the energy-momentum tensor of Classical Electrodynamics. Usually it has been considered as a necessary and sufficient criterion for redefining the energy-momentum tensor that the new tensor yields the "true" equation of motion of the electron, that is, the Lorentz-Dirac equation. We show that such a property is not sufficient. In fact, we study two specific examples in which the redefined energy momentum tensor yields a Lorentz-Dirac equation. However, in both cases the corresponding rate of emission associated to them is different to the well-known Larmor rate.

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