Axion Searches with Two Superconducting Radio-frequency Cavities

Abstract

We propose an experimental setup to search for Axion-like particles (ALPs) using two superconducting radio-frequency cavities. In this light-shining-through-wall setup the axion is sourced by two modes with large fields and nonzero $\vec{E}\cdot \vec{B}$ in an emitter cavity. In a nearby identical cavity only one of these modes, the spectator, is populated while the other is a quiet signal mode. Axions can up-convert off the spectator mode into signal photons. We discuss the physics reach of this setup finding potential to explore new ALP parameter space. Enhanced sensitivity can be achieved if high-level modes can be used, thanks to improved phase matching between the excited modes and the generated axion field. We also discuss the potential leakage noise effects and their mitigation, which is aided by O(GHz) separation between the spectator and signal frequencies.

16 pages, 6 figures

References in corpus (6)

• Revisiting the bound on axion-photon coupling from Globular Clusters
• Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
• Resonantly Enhanced Axion-Photon Regeneration
• Heterodyne Broadband Detection of Axion Dark Matter
• Probing ALPs and the Axiverse with Superconducting Radiofrequency Cavities
• Microwave apparatus for gravitational waves observation

Cited by in corpus (1)

• Probing CP Violation in Photon Self-Interactions with Cavities