Speaker
Yuanlin Gong
(Nanjing Normal University)
Description
Ultra-light Dark Matter (ULDM) is one of the most promising DM candidates. Due to the Bose
enhancement, we find the annihilation rate of the ULDM in the presence of background photon
radiation can be greatly enhanced and produce a distinctive reflected electromagnetic wave with an
angular frequency equal to the ULDM mass. We propose to utilize such stimulated annihilation
to probe the ULDM with the electromagnetic quadratic coupling by emitting a beam of radio into
space. With a power of 50 MW emitter, we forecast the sensitivity of quadratic coupling in different
local halo models for low-frequency radio telescopes, such as LOFAR, UTR-2 and ngLOBO.
| Paper info | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.109.055026 |
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Primary author
Yuanlin Gong
(Nanjing Normal University)
Co-authors
Prof.
Bin Zhu
(Yantai University)
Prof.
Lei Wu
(Nanjing Normal University)
Prof.
Qiaoli Yang
(Jinan university)
Mr
Xin Liu
(Nanjing Normal University)
