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arXiv · 1911.00429

Quantum-enhanced interferometry for axion searches

Denis Martynov·Haixing Miao
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Abstract

We propose an experiment to search for axions and axion-like-particles in the galactic halo using quantum-enhanced interferometry. This proposal is related to the previously reported ideas (Phys. Rev. D 98, 035021, Phys. Rev. Lett. 121, 161301, Phys. Rev. D 100, 023548) but searches for axions in the mass range from $10^{-16}$ eV up to $10^{-8}$ eV using two coupled optical cavities. We also show how to apply squeezed states of light to enhance the sensitivity of the experiment similar to the gravitational-wave detectors. The proposed experiment has a potential to be further scaled up to a multi-km long detector. We show that such an instrument has a potential to set constrains of the axion-photon coupling coefficient of $\sim 10^{-18}$ GeV$^{-1}$ for axion masses of $10^{-16}$ eV or detect the signal.

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Denis Martynov, Haixing Miao. 2019-11-01. Quantum-enhanced interferometry for axion searches. https://doi.org/10.1103/physrevd.101.095034

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