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SUMMARY:Superradiant interactions of cosmic relics and how to look for the
 m
DTSTART:20251030T000000Z
DTEND:20251030T010000Z
DTSTAMP:20260722T200800Z
UID:indico-event-15761@indico.global
DESCRIPTION:Speakers: Marios Galanis\n\nIn this talk I will do three thing
 s. First\, I will outline the conditions under which the interaction rate 
 of inelastic processes with a system consisting of N targets scales as N^2
 . Second\, I will present computations of interaction rates for several we
 akly interacting particles\, including the cosmic neutrino background and 
 axion dark matter\, and will explain the underlying physics. Third\, I wil
 l present a concrete experimental protocol using Nuclear Magnetic Resonanc
 e that can extract these effects through quantum observables not relying o
 n net energy transfer. This protocol has the potential to significantly ac
 celerate axion and dark photon dark matter searches and extend the reach o
 f existing axion experiments to probe QCD axion-nuclear spin couplings. Mo
 re broadly\, it paves the way for detecting coherent inelastic interaction
 s from other cosmic relics---most notably the cosmic neutrino background--
 -and establishes nuclear-spin-based systems as a new class of quantum\, ul
 tra-low-threshold detectors.\n\nhttps://indico.global/event/15761/
URL:https://indico.global/event/15761/
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