Maxwell-Chern-Simons theory for curved spacetime backgrounds

Details Maxwell-Chern-Simons theory for curved spacetime backgrounds Maxwell-Chern-Simons theory for curved spacetime backgrounds

2005-07-16

arxiv.org/abs/hep-th/0507162v6

Nucl.Phys.B731:125-139,2005; Erratum-ibid.809:362-364,2008

Physics

High Energy Physics

High Energy Physics - Theory

28 pages with elsart, v6: published version of paper and Erratum

Scientific paper

10.1016/j.nuclphysb.2005.09.045

We consider a modified version of four-dimensional electrodynamics, which has a photonic Chern-Simons-like term with spacelike background vector in the action. Light propagation in curved spacetime backgrounds is discussed using the geometrical-optics approximation. The corresponding light path is modified, which allows for new effects. In a Schwarzschild background, for example, there now exist stable bounded orbits of light rays and the two polarization modes of light rays in unbounded orbits can have different gravitational redshifts. An Erratum with important corrections has been published, which appears as Appendix E in this arXiv version.

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