Axion Dark Matter Search with Interferometric Gravitational Wave - PowerPoint PPT Presentation

Axion Dark Matter Search with Interferometric Gravitational Wave Detectors Ippei Obata (theory group, ICRR, University of Tokyo) arXiv:1903.02017 (to be published in PRL) Collaborators ： Koji Nagano (ICRR, KAGRA member) Tomohiro Fujita (Kyoto University, Geneva University) Yuta Michimura (University of Tokyo, KAGRA member) 2019.9.10 TAUP 1 / 17

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Search for Axion (DM) via Photon ADMX CAST 3 / 17

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sha1_base64="Gxsfk4VLN0N8oujVRMJEL7fM/XA=">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</latexit> Axion DM – Photon Interaction (without using a background magnetic field) F µ ν = ∂ µ A ν − ∂ ν A µ g a γ F µ ν = g a γ ˙ 4 aF µ ν ˜ aA i ✏ ijk @ j A k + (total derivative) ¨ A i � r 2 A i + g a γ ˙ EOM for photon : a ✏ ijk @ j A k = 0 , a ( t ) = a 0 cos( mt + � τ ) Axion DM : n Decomposing two circular polarized photons, we get A L / R L / R A L / R ¨ + ω 2 = 0 , k k 1 ± g a γ a 0 m L / R ≡ k 2 ⇣ ⌘ ω 2 sin( mt + δ τ ) k 4 / 17