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Searching for Axion Dark Matter with Birefringent Cavities

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arxiv 1809.01656 v2 pith:PCKD2QYX submitted 2018-09-05 hep-ph astro-ph.COphysics.ins-detphysics.optics

Hongwan Liu , Brodi D. Elwood , Matthew Evans , Jesse Thaler This is my paper · ORCID
classification hep-phastro-ph.COphysics.ins-detphysics.optics
keywords axionbirefringentcavitiescavityconceptcouplingdarkdesigns
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Axion-like particles are a broad class of dark matter candidates which are expected to behave as a coherent, classical field with a weak coupling to photons. Research into the detectability of these particles with laser interferometers has recently revealed a number of promising experimental designs. Inspired by these ideas, we propose the Axion Detection with Birefringent Cavities (ADBC) experiment, a new axion interferometry concept using a cavity that exhibits birefringence between its two, linearly polarized laser eigenmodes. This experimental concept overcomes several limitations of the designs currently in the literature, and can be practically realized in the form of a simple bowtie cavity with tunable mirror angles. Our design thereby increases the sensitivity to the axion-photon coupling over a wide range of axion masses.

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Cited by 3 Pith papers

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    In a hierarchical multi-axion theory with random couplings, axion field ranges shrink with 1/sqrt(N), generic axion–SM couplings are suppressed, but the QCD axion's coupling is unsuppressed.

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    New 90% C.L. limits on the ALP–photon coupling in the 0.1–100 keV range are derived from Connie and Atucha-II reactor data via plasmon excitation in silicon; a 30 kg·yr Oscura-style run could improve on NEON by about tenfold.

  3. Massive graviton dark matter searches with long-baseline atom interferometers

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    Long-baseline atom interferometers could detect ultra-light spin-2 dark matter through three coupling channels, reaching mass and coupling ranges that LIGO and LISA cannot cover.

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