Axion Dark Matter Search with Interferometric Gravitational Wave Detectors

by Dr Ippei Obata

Wednesday 22 May 2019, 11:30 → 13:30 Europe/Zurich

4/2-011 - TH common room (CERN)

Axion dark matter differentiates the phase velocities of the circular-polarized photons. In this talk, we present a scheme to measure its phase difference by using a linear optical cavity. We applied this scheme to the Fabry-Perot arm of gravitational wave detectors such as aLIGO, CE, and DECIGO. We found that their potential sensitivities to the axion-photon coupling constant, g_{aγ}, can reach beyond the current limit of CAST with several orders of magnitude, at a wide axion mass range 10^{-16}eV < m < 10^{-9} eV. Our sensitivity can be achieved without loosing any sensitivity to gravitational waves. This talk is based on our recent paper [arXiv: 1903.02017].