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DTSTART:20220327T030000
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BEGIN:VEVENT
DTSTAMP:20260405T225042Z
UID:6189065953376535664734@ist.ac.at
DTSTART:20211206T110000
DTEND:20211206T120000
DESCRIPTION:Speaker: Cristiano Ciuti\nhosted by Johannes Fink\nAbstract: Th
 e manipulation of matter by giant vacuum fields in electromagnetic resonat
 ors is an emergent topic in physics and chemistry [1]. In this seminar\, a
 fter a general introduction\, we will see how the cavity vacuum fluctuatio
 ns can dramatically affect the physics of disordered quantum Hall systems.
  In particular\, we will show how\, in the presence of electronic disorder
 \, the cavity can mediate long-range electron hopping via the exchange of 
 virtual photons\, involving both edge and bulk states [2]. Such an effect 
 can produce a breakdown of the topological protection of the integer quant
 um Hall effect as demonstrated in recent transport experiments [3]. Future
  perspectives will be discussed.[1] F. J. Garcia-Vidal\, C. Ciuti\, T. W. 
 Ebbesen\, Manipulating matter by strong coupling to vacuum fields\, Scienc
 e 373\,178 (2021).[2] C. Ciuti\, Cavity-mediated electron hopping in disor
 dered quantum Hall systems\, Phys. Rev. B 104\, 155307 (2021).[3] F. Appug
 liese\, J. Enkner\, G. L. Paravicini-Bagliani\, M. Beck\, C. Reichl\, W. W
 egscheider\, G. Scalari\, C. Ciuti\, J. Faist\, Breakdown of the topologic
 al protection by cavity vacuum fields in the integer quantum Hall effect\,
  preprint arXiv:2107.14145 (2021)
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101) & Online via 
 Zoom\, ISTA
ORGANIZER:swiddman@ist.ac.at
SUMMARY:Cristiano Ciuti: Manipulating matter with vacuum fields: cavity-med
 iated transport in disordered quantum Hall systems
URL:https://talks-calendar.ista.ac.at/events/3422
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