Speaker: Sebastian Ellis
Title:Axion Dark Matter Detection in an RF Cavity
Host: Da Liu
Room: 432
Abstract: I will present the recently proposed approach to detect photon-coupled dark matter axions in an RF cavity haloscope. The approach relies on axion-mediated transitions between nearly-degenerate resonant modes, leading to parametrically enhanced signal power for light axions. We will discuss how a resonant signal is generated, and how it compares with traditional haloscope searches. We will also discuss noise sources. This approach could probe axion oscillation frequencies ranging from Hz to O(100) MHz, all while operating at GHz frequencies.