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BEGIN:VEVENT
UID:0-670@lptms.universite-paris-saclay.fr
DTSTART:20190520T110000Z
DTEND:20190520T120000Z
DTSTAMP:20190514T123020Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-excepti
 onnel-du-lptms-maxime-dupont/
SUMMARY:Séminaire exceptionnel du LPTMS: Maxime Dupont - LPTMS\, salle 201
 \, 2ème étage\, Bât 100\, Campus d'Orsay - 20 Mai 19 11:00
DESCRIPTION:Dynamics in quantum magnets\nMaxime Dupont (UC Berkeley)\nTheor
 etically challenging\, the understanding of the dynamical response in quan
 tum magnets is of great interest\, in particular for both inelastic neutro
 n scattering (INS) and nuclear magnetic resonance (NMR) experiments. In th
 is talk\, I will address this question for quasi-one-dimensional quantum m
 agnets\, e.g.\, weakly coupled spin chains for which many compounds are av
 ailable in nature. In this class of systems\, the dimensional crossover be
 tween a three-dimensional ordered regime at low temperature towards one-di
 mensional physics at higher temperature is a nontrivial issue\, notably di
 fficult concerning dynamical properties. I will present a comprehensive th
 eoretical study based on both analytical calculations and numerical simula
 tions which allows us to describe the full temperature crossover for the N
 MR relaxation rate 1/T1\, from one-dimensional Tomonaga-Luttinger liquid p
 hysics to the three-dimensional ordered regime\, as a function of intercha
 in couplings.
CATEGORIES:seminars
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
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  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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