Speaker
Samuel S. Y. Wong
(Stanford University)
Description
Ultralight dark matter, such as axion and dark photon, in the milli-eV mass range, is notoriously difficult to detect. It is too high in frequency for high-$Q$ cavity resonators yet below the energy threshold of single-photon detectors. Our recent work (arXiv:2208.06519) showed that the cyclotron motion of trapped electrons can resonantly couple to dark photon and provide a powerful probe of this mass range. The effect is enhanced by the geometric focusing of a spherical cavity. We demonstrated the method is background-free over a 7-day period. I will also present some new ideas for improving this method and modifying it to search for axion.
Primary authors
Samuel S. Y. Wong
(Stanford University)
Dr
Peter W. Graham
Dr
Gerald Gabrielse
Dr
Harikrishnan Ramani
Dr
Roni Harnik
Dr
Xing Fan
Ms
Yawen Xiao
Mr
Thomas G. Myers
Mr
Benedict A. D. Sukra
