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SUMMARY:Probing Particle Physics with Black Holes and Quantum Sensors
DTSTART:20250226T023000Z
DTEND:20250226T033000Z
DTSTAMP:20261010T134500Z
UID:indico-event-3924@indico-tdli.sjtu.edu.cn
DESCRIPTION:Speakers: Yifan Chen (Niels Bohr Institute\, University of Cop
 enhagen (Denmark))\n\nAbstractUltralight bosons\, such as axions and dark 
 photons\, have emerged as compelling candidates for new physics\, motivati
 ng a range of searches across particle physics. However\, detecting these 
 bosons remains a significant challenge due to their extremely weak interac
 tions with Standard Model particles. This talk explores two approaches to 
 enhancing these searches: (1) the amplification of boson density near blac
 k holes (BHs)\, where strong gravitational fields can significantly boost 
 their concentration\; and (2) the use of quantum sensors on Earth to captu
 re the coherent oscillations of local ultralight dark matter. Key phenomen
 a like superradiant amplification\, which can lead to near-Planck-scale fi
 eld values\, can significantly increase the density of ultralight bosons i
 n the vicinity of BHs. These high densities enhance the detectability of s
 ignals\, including gravitational wave emissions and electromagnetic signat
 ures from BHs. In these dense boson environments\, early-universe-like phe
 nomena\, such as non-perturbative particle production\, can emerge. These 
 processes offer novel opportunities for dark matter detection\, neutrino o
 bservation\, and the development of new quantum sensor technologies\, enab
 ling focused observational efforts on specific BHs or galactic centers.Bio
 graphyYifan Chen is currently a postdoctoral researcher at the Niels Bohr 
 Institute\, University of Copenhagen (Denmark). He has previously studied 
 and worked at the University of Science and Technology of China\, École P
 olytechnique (France)\, Sorbonne University (France)\, and the Institute o
 f Theoretical Physics\, Chinese Academy of Sciences. His research focuses 
 on fundamental particle physics\, employing a variety of approaches that i
 nclude astrophysical observations and terrestrial detection techniques.Cha
 irProf.Xiaogang HeDivisionInstitutionOther informationTencent meeting link
 : https://meeting.tencent.com/dm/nD2DhrIWGLD4   (Meeting ID: 96214201
 5     No password)\n\nhttps://indico-tdli.sjtu.edu.cn/event/3924/
LOCATION:TDLI Meeting Room N400
URL:https://indico-tdli.sjtu.edu.cn/event/3924/
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