Speaker
Chiara Salemi
Description
Axions with low masses (less than ~1 \mu eV) have wavelengths that are too large to fit inside a reasonably-sized experiment. In this regime, axion-photon interactions in a strong magnetic field produce an effective current that is in phase across an entire detector. This effective current can be inductively coupled to a circuit and read out using high-sensitivity amplifiers. ABRACADABRA-10 cm gave the first demonstration of this technique, setting world-leading limits on axion dark matter with masses 0.3-8.3 neV. This program is continuing with DMRadio, a set of lumped element experiments currently being designed with the goal of searching for ALP and QCD axion dark matter over a wide range of masses below 1 \mu eV.