Photon counting for axion interferometry

Yu, Haocun, Kwon, Ohkyung, Namburi, Devendra K., Hadfield, Robert H., Grote, Hartmut ORCID: https://orcid.org/0000-0002-0797-3943 and Martynov, Denis 2024. Photon counting for axion interferometry. Physical Review D (particles, fields, gravitation, and cosmology) 109 (9) , 095042. 10.1103/PhysRevD.109.095042

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Abstract

Axions and axionlike particles are well-motivated dark matter candidates. We propose a novel experiment that uses single-photon detection interferometry to search for axions and axionlike particles in the Galactic halo. We show that photon counting with a dark count rate of 6×10−6  Hz can improve the quantum sensitivity of axion interferometry by a factor of 50 compared to the quantum-enhanced heterodyne readout for 5-m-long optical resonators. The proposed experimental method has the potential to be scaled up to kilometer-long facilities, enabling the detection or setting of constraints on the axion-photon coupling coefficient of 10−17−10−16  GeV−1 for axion masses ranging from 0.1 to 1 neV.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Publisher:	American Physical Society
ISSN:	2470-0010
Date of First Compliant Deposit:	11 July 2024
Date of Acceptance:	19 April 2024
Last Modified:	15 Jul 2024 09:00
URI:	https://orca.cardiff.ac.uk/id/eprint/170519

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