paper

Does three dimensional electromagnetic field inherit the spacetime symmetries?

arXiv:1508.03343 · doi:10.1088/0264-9381/33/7/077001

Abstract

We prove that the electromagnetic field in a (1+2)-dimensional spacetime necessarily inherits the symmetries of the spacetime metric in a large class of generalized Einstein-Maxwell theories. The Lagrangians of the studied theories have general diff-covariant gravitational part and include both the gravitational and the gauge Chern-Simons terms.

10 pages; published version (some comments and references added)

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