Production and detection of an axion dark matter echo. (arXiv:1902.00114v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Arza_A/0/1/0/all/0/1">Ariel Arza</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Sikivie_P/0/1/0/all/0/1">Pierre Sikivie</a>
Electromagnetic radiation with angular frequency equal to half the axion mass
stimulates the decay of cold dark matter axions and produces an echo, i.e.
faint electromagnetic radiation traveling in the opposite direction. We propose
to search for axion dark matter by sending out to space a powerful beam of
microwave radiation and listening for its echo. We find that this is a
promising approach to axion detection in the $2 times 10^{-7}$ to $3 times
10^{-4}$ eV mass range.
Electromagnetic radiation with angular frequency equal to half the axion mass
stimulates the decay of cold dark matter axions and produces an echo, i.e.
faint electromagnetic radiation traveling in the opposite direction. We propose
to search for axion dark matter by sending out to space a powerful beam of
microwave radiation and listening for its echo. We find that this is a
promising approach to axion detection in the $2 times 10^{-7}$ to $3 times
10^{-4}$ eV mass range.
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