Microwave cavity searches for low-frequency axion dark matter
Microwave cavity searches for low-frequency axion dark matter
For low-mass (frequency $\ensuremath{\ll}\mathrm{GHz}$) axions, dark matter detection experiments searching for an axion-photon-photon coupling generally have suppressed sensitivity, if they use a static background magnetic field. This geometric suppression can be alleviated by using a high-frequency oscillating background field. Here, we present a high-level sketch of such an experiment, using …