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VERSION:2.0
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X-WR-CALNAME:LASSP & AEP Seminar by Prof. Junichiro Kono (Rice University)
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260815T133253Z
UID:tag:localist.com\,2008:EventInstance_45454752553284
DTSTART:20240220T172000Z
DTEND:20240220T183000Z
DESCRIPTION:Junichiro Kono\nProfessor\, Rice University\n\nQuantum Vacuum D
 ressed Materials\nThere has been a growing realization that the properties
  of a material can be modified just by placing it in an optical cavity. Th
 e quantum vacuum fields surrounding the material inside the cavity can cau
 se nonintuitive modifications of electronic states through ultrastrong vac
 uum–matter coupling\, producing a vacuum-dressed material with novel pro
 perties. Existing theoretical predictions include cavity-enhanced\, cavity
 -induced\, and cavity-mediated enhancement of electron–phonon coupling a
 nd superconductivity\, electron pairing\, anomalous Hall effect\, ferroele
 ctric phase transitions\, quantum spin liquids\, and photon condensation. 
 The so-called ultrastrong coupling (USC) regime is a prerequisite for obse
 rving these effects\, which arises when the interaction energy becomes a s
 ignificant fraction of the bare photonic mode and matter excitation freque
 ncies. Most intriguingly\, when a material is ultrastrongly coupled with c
 avity-enhanced vacuum electromagnetic fields\, its ground state will conta
 in virtual photons. This nonperturbative virtual driving without external 
 fields can lead to phase transitions in thermal equilibrium. This talk wil
 l describe our recent studies of USC phenomena in various solid-state cavi
 ty quantum electrodynamics systems in search of such vacuum-induced phases
  of matter. We utilize the phenomenon of Dicke cooperativity\, i.e.\, many
 -body enhancement of light–matter interaction\, to explore quantum-optic
 al strategies for creating\, controlling\, and utilizing novel phases in c
 ondensed matter enabled by the quantum vacuum.\n\nHosted by Ankit Disa\n\n
 Pizza served starting at 12:10 p.m.\nPlease bring your own beverage
GEO:42.449741;-76.481209
LOCATION:Clark Hall\, 700
SUMMARY:LASSP & AEP Seminar by Prof. Junichiro Kono (Rice University)
URL;VALUE=URI:https://events.cornell.edu/event/lassp_aep_seminar_by_prof_ju
 nichiro_kono_rice_university
CATEGORIES:Seminar
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