Search for Cosmic Axions using an Optical Interferometer
arXiv:0807.1092 · doi:10.1103/PhysRevLett.102.202001
Abstract
A high finesse optical cavity can be used to search for cosmic axions in the mass range 10^{-6}< m_a <10^{-4} eV. Either a two-arm or a single-arm cavity is suitable and in either case the signal as resonant sidebands imposed on the carrier. Assuming for the local axion density the usual figure of 500 MeV/cm^3 [8], the KSVZ axion line [4] g/m_a = 0.4 Gev^{-2}, can be reached over the full mass range in a one year search.
4 pages, 2 figure
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