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SUMMARY:Searching for Axions and High Frequency Gravitational Waves with T
 able-Top Experiments (Matthias Schott\, Physikalisches Institut Bonn)
DTSTART:20251013T120000Z
DTEND:20251013T140000Z
DTSTAMP:20260618T110400Z
UID:indico-event-37366@indico.in2p3.fr
DESCRIPTION:Speakers: Matthias Schott (CERN)\n\nSearching for Axions and H
 igh Frequency Gravitational Waves with Table-Top ExperimentsAbstract: With
  the observation of gravitational waves (GWs) in 2015 by the terrestial in
 terferometer LIGO\, a new era of fundamental physics begun. Since then\, a
  network of GW ground-based interferemeters has scrutinized the band of fr
 equencies in the Hz to kHz range\, finding almost hundred mergers of binar
 ies of black holes or neutron stars. In 2023\, a signal in the nHz band wa
 s discovered using the timing of radio signals from pulsars. The race for 
 the exploration of other bands is one of the most active and potentially g
 roundbreaking areas of physics. Accessing high frequency GWs (HFGWs)\, in 
 the range kHz-GHz\, is of high interest for multiple reasons. For example\
 , the recent recognition that some odds-on models of dark matter generate 
 signals in this range\, caused by primordial black hole mergers or dynamic
 s of over densities of ultra-light dark matter.The use of cavities in stro
 ng magnetic fields has been identified as one of the most promising techni
 ques to search for HFGWs as well as Axions. In this context\, we are curre
 ntly establishing the GravNet (Global Network of Cavities to Search for Gr
 avitational Waves) project\, that aims to significantly improve these idea
 s towards the detection of HFGWs. The scheme utilizes the synergy of diffe
 rent technologies and methodology approaches and is fundamentally based on
  synchronous measurements of cavity signals from multiple devices operatin
 g in magnetic fields at different locations\, boosting the sensitivity tow
 ards HFGWs by more than three orders of magnitude compared to current appr
 oaches. In this talk\, we will present the key concepts of GravNet\, resul
 ts of preliminary studies and possibilities to join this initiative.\n\nht
 tps://indico.in2p3.fr/event/37366/
LOCATION:amphi Charpak
URL:https://indico.in2p3.fr/event/37366/
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