Photon-Axion conversions in transversely inhomogeneous magnetic fields

Abstract

We compute the photon-axion conversion probability in an external magnetic field with a strong transverse gradient in the eikonal approximation for plane waves. We find it typically smaller than a comparable uniform case. Some insights into the phenomenon of photon-axion splitting are given.

Comments: 4 pages, to appear in the Proceedings of the 5th Patras Workshop on Axions, WIMPs and WISPs