Photon counting for axion interferometry

Haocun Yu (Corresponding author), Ohkyung Kwon, Devendra K. Namburi, Robert H. Hadfield, Hartmut Grote, Denis Martynov

Publications: Contribution to journalArticlePeer Reviewed


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.
Original languageEnglish
Article number095042
Number of pages7
JournalPhysical Review D
Issue number9
Publication statusPublished - 1 May 2024

Austrian Fields of Science 2012

  • 103004 Astrophysics

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