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SUMMARY:QSE Quantum Seminar: Replica symmetry breaking in a quantum-optica
 l vector spin glass
DTSTART:20240816T150000
DTEND:20240816T160000
DTSTAMP:20261023T212316Z
UID:3d03e67a8e5883efdebd0ab86879ef5b3ef10702984ce8e4014e5e34
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Ronen Kroeze\nPlease join us for the QSE Center Quantum
  Seminar with Ronen Kroeze from Stanford University and LMU Munich\, wh
 o will give the talk "Replica symmetry breaking in a quantum-optical vect
 or spin glass" on Friday August 16.\nLocation: MA A3 30\n\nPLEASE NOTE: 
 Unlike past seminars\, this will take place from 15:00-16:00. Snacks and d
 esserts will be served. All PhDs\, postdocs\, students\, and PIs are welco
 me to join us.\n\nTITLE: "Replica symmetry breaking in a quantum-optical 
 vector spin glass"\n\nABSTRACT: Multimode optical cavity QED provides a v
 ersatile platform with which to explore quantum many-body physics in drive
 n-dissipative systems. Confocal cavities host all-to-all\, sign-changing\,
  photon-mediated spin interactions that enable study of spin glasses in a 
 quantum optical setting. Using the density wave phases of multiple BECs lo
 cated inside the cavity as pseudospin degrees of freedom\, this system rea
 lizes an unusual type of transverse-field vector spin glass. Individual sp
 in configurations are observed in cavity emission and reveal the emergence
  of replica symmetry breaking and nascent ultrametric structure as signatu
 res of spin-glass order. The driven-dissipative nature of the system manif
 ests as a nonthermal Parisi distribution\, in qualitative correspondence w
 ith Monte Carlo simulations. These results enable further microscopic stud
 y of associative memories and spin glass physics\, potentially down to the
  quantum-spin-level.\n\n 
LOCATION:MA A3 30 https://plan.epfl.ch/?room==MA%20A3%2030
STATUS:CONFIRMED
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