New parity-violating photon-axion interaction

Abstract

A variant of an earlier proposal by the author and SenGupta, to describe four dimensional Maxwell electrodynamics in Einstein-Cartan spacetimes through a Kalb-Ramond field as an intermediary, is shown to lead to a new Maxwell-Kalb-Ramond coupling that violates spatial parity, even when the KR gauge field has its standard parity assignment. One consequence of this coupling seems to be a modulation, independent of wavelength but dependent on the KR field strength, of the intensity of synchrotron radiation observed from distant galactic sources.

5 pages, Revtex, no figures, a paragraph added to explain approximations made. No essential changes in results

References in corpus (3)

• Further Evidence for Cosmological Evolution of the Fine Structure Constant
• Cosmic optical activity from an inhomogeneous Kalb-Ramond field
• Fermion helicity flip by parity violating torsion

Cited by in corpus (7)

• Charged black holes in generalized dilaton-axion gravity
• Kalb-Ramond field interactions in a braneworld scenario
• Gauge invariant coupling of fields to torsion: a string inspired model
• Exploring scalar-photon interactions in energetic astrophysical events
• Cosmological Behavior of a Parity and Charge-Parity Violating Varying Alpha Theory
• Constraining PCP Violating Varying Alpha Theory Through Laboratory Experiments
• Analysing the Effect on CMB in a Parity and Charge Parity Violating Varying Alpha Theory