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A Consistent Construction of the Electromagnetic Energy-Momentum Tensor

DOI: 10.4236/oalib.1104354, PP. 1-8

Subject Areas: Theoretical Physics

Keywords: Lagrangian Density, Energy-Momentum Tensor, Radiation Fields, Bound Fields

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Abstract

This work discusses the problem of the apparently non-symmetric form of the electromagnetic fields’ energy-momentum tensor, which is obtained from the variational principle. The analysis treats differently radiation fields and bound fields. This distinction has a solid experimental basis where the hydrogen atom proves that radiation fields and bound fields have a different spin and a different parity. A direct calculation proves that in the case of radiation fields, the variational principle yields the well known symmetric energy momentum tensor and the problem does not exist.

Cite this paper

Comay, E. (2018). A Consistent Construction of the Electromagnetic Energy-Momentum Tensor. Open Access Library Journal, 5, e4354. doi: http://dx.doi.org/10.4236/oalib.1104354.

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