paper

Dielectric Haloscopes: A New Way to Detect Axion Dark Matter

arXiv:1611.05865 · doi:10.1103/PhysRevLett.118.091801

Abstract

We propose a new strategy to search for dark matter axions in the mass range of 40--400 eV by introducing dielectric haloscopes, which consist of dielectric disks placed in a magnetic field. The changing dielectric media cause discontinuities in the axion-induced electric field, leading to the generation of propagating electromagnetic waves to satisfy the continuity requirements at the interfaces. Large-area disks with adjustable distances boost the microwave signal (10--100 GHz) to an observable level and allow one to scan over a broad axion mass range. A sensitivity to QCD axion models is conceivable with 80 disks of 1 m area contained in a Tesla field.

arXiv comment6 pages, 3 figures. v2: minor changes to align with published version

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