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CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3629
DTSTART:20150226T220000Z
DTEND:20150226T230000Z
DTSTAMP:20260419T142409Z
LAST-MODIFIED:20150217T140112Z
LOCATION:4274 Chamberlin Hall
SUMMARY:Many body localization: a new frontier for quantum statistical
  physics\, R. G. Herb Condensed Matter Seminar\, Rahul Nandkishore\, P
 rinceton Center for Theoretical Science
DESCRIPTION:The existing theory of quantum statistical mechanics descr
 ibes open systems in contact with large reservoirs. However\, experime
 ntal advances in the construction and control of isolated quantum syst
 ems have highlighted the need for an analogous theory of isolated quan
 tum systems. It has been realized that isolated many body quantum syst
 ems can support behavior which has no analog in traditional statistica
 l mechanics. A prominent example is the phenomenon of many body locali
 zation. <br>
\n<br>
\nMany body localization occurs in isolated quantu
 m systems\, usually with strong disorder\, and is marked by absence of
  dissipation\, absence of thermal equilibration\, and a memory of the 
 initial conditions that survives in local observables for arbitrarily 
 long times. The many body localized regime is a far from equilibrium\,
  strongly disordered regime that constitutes a new frontier for quantu
 m statistical mechanics. Recently\, my co-workers and I have demonstra
 ted that many body localization opens the door to new states of matter
  which cannot exist in thermal equilibrium\, such as topologically ord
 ered states without a bulk gap\, and broken symmetry states at high en
 ergy densities in one dimension. We have also uncovered a host of unex
 pected properties\, such as a set of universal spectral features and a
  non-local charge response\, that have striking implications for field
 s as diverse as quantum Hall based quantum computation and quantum con
 trol. In this talk\, I review the essential features of the many body 
 localization phenomenon\, and present some of the recent progress that
  has been made in this field. I also discuss the implications of these
  results for both theory and experiment\, and the connections with div
 erse areas of theoretical physics. I conclude with a discussion of fut
 ure directions. <br>
\n<br>
\nReference: Rahul Nandkishore and David A
 . Huse\, arXiv: 1404.0686 [Annual Reviews of Condensed Matter Physics\
 , 2015]<br>
\n
URL:https://www.physics.wisc.edu/events/?id=3629
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