Dielectric Haloscopes to Search for Axion Dark Matter: Theoretical Foundations

Abstract

We study the underlying theory of dielectric haloscopes, a new way to detect dark matter axions. When an interface between different dielectric media is inside a magnetic field, the oscillating axion field acts as a source of electromagnetic waves, which emerge in both directions perpendicular to the surface. The emission rate can be boosted by multiple layers judiciously placed to achieve constructive interference and by a large transverse area. Starting from the axion-modified Maxwell equations, we calculate the efficiency of this new dielectric haloscope approach. This technique could potentially search the unexplored high-frequency range of 10--100 GHz (axion mass 40--400 $\mu$eV), where traditional cavity resonators have difficulties reaching the required volume.

71 pages, 34 figures; v2: minor changes, typo in (4.13) corrected, matches published version

References in corpus (13)

• Big-Bang Nucleosynthesis
• The Local Dark Matter Density
• Dielectric Haloscopes: A New Way to Detect Axion Dark Matter
• First results from a microwave cavity axion search at 24 micro-eV
• On the local dark matter density
• Redefining the Axion Window
• Unifying inflation with the axion, dark matter, baryogenesis and the seesaw mechanism
• The transfer matrix: a geometrical perspective
• A Search for Dark Matter Axions with the Orpheus Experiment
• Forward di-jet production in p+Pb collisions in the small-x improved TMD factorization framework
• Design and Operational Experience of a Microwave Cavity Axion Detector for the 20-100 micro-eV Range
• Lattice QCD for Cosmology
• Calculations of resonance enhancement factor in axion-search tube-experiments

Cited by in corpus (3)

• Dielectric Haloscopes: A New Way to Detect Axion Dark Matter
• Axion astronomy with microwave cavity experiments
• Axion-photon conversion caused by dielectric interfaces: quantum field calculation