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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-237@lptms.universite-paris-saclay.fr
DTSTART:20140320T143000Z
DTEND:20140320T153000Z
DTSTAMP:20140220T080904Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/tri-seminaire-de-
 physique-statistique-thierry-giamarchi/
SUMMARY:Tri-séminaire de Physique Statistique : Thierry Giamarchi - LPTMS\
 , salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay - 20 Mar 14 14:30
DESCRIPTION:Quantum magnets as quantum simulators\nThierry Giamarchi (Unive
 rsité de Genève)\nThe ability to control the properties of magnetic insu
 lators by magnetic fields large enough to fully polarize the system has op
 ened a host of possibilities. In addition to the intrinsic interest of suc
 h questions for magnetic systems\, is has been shown that such systems cou
 ld be efficiently used as quantum simulators to emulate problems pertainin
 g to itinerant fermionic or bosonic systems. The magnetic field can then b
 e viewed as similar to a gate voltage controlling the number of ``particle
 s'' allowing an unprecedented level of control. In parallel with the exper
 imental developments\, progress on the theoretical front both on the numer
 ical and the analytical side\, have allowed a remarkable level of accuracy
  in obtaining the physical properties and in particular the correlation fu
 nctions of these systems. A comparison between theoretical predictions wit
 hout adjustable parameters or fudging with results from NMR\, Neutrons or 
 other probes such as ESR is thus now possible. This has allowed for exampl
 e to test quantitatively the physics of Tomonaga-Luttinger liquids and als
 o to tackle the effects of the interactions between spinons by comparing t
 he physics of weak rung ladders with the one of strong rung ones.\nI will 
 review the recent results obtained in this domain with the different exper
 imental compounds and will discuss the open questions and challenges. This
  concerns in particular the issues of finite temperatures\, higher dimensi
 onal systems and effects of disorder.
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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