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DTSTART;TZID=Europe/Paris:20221011T140000
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DTSTAMP:20260424T035838
CREATED:20221001T060052Z
LAST-MODIFIED:20221013T064235Z
UID:8281-1665496800-1665502200@fermi.univ-tlse3.fr
SUMMARY:Anderson transitions and (lost) conformal invariance  - (Ilya Gruzberg / Seminar / LPT). - 11/10/2022
DESCRIPTION:Ilya Gruzberg (Université d’État de l’Ohio\, États-Unis) \nSummary : Anderson transitions (ATs) between metals and insulators or between topologically distinct insulators\, share common features with conventional second-order phase transitions\, such as the critical point of the Ising model for a magnet. However\, ATs also exhibit many unusual features including the multifractal scaling of the critical wave functions. Conventional critical points possess conformal invariance which constrain their properties to the extent that they can be obtained exactly in two dimensions and to very high precision in three dimensions. Until recently\, researchers assumed that Anderson transitions also possess conformal invariance and can be described by conformal field theories (CFTs). I will review recent progress in understanding the relation between conformal invariance and mutifractal wave functions. The emerging picture puts serious doubt on the ability of CFTs to properly describe multifractality at ATs in both two and three dimensions. \n\n 
URL:https://fermi.univ-tlse3.fr/event/tba-ilya-gruzberg-seminar-11-10-2022/
LOCATION:salle de séminaire 3ème étage\, Bâtiment 3r1 Université Toulouse III\, Toulouse\, 31400\, France
CATEGORIES:Events,LPT,Seminars
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