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X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
X-WR-CALDESC:
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BEGIN:VEVENT
CLASS:PUBLIC
DTSTART;TZID=Europe/Paris:20220203T110000
DTEND;TZID=Europe/Paris:20220203T120000
DTSTAMP:20220127T211300
UID:MEC-747d3443e319a22747fbb873e8b2f9f2@lps.u-psud.fr
CREATED:20220127
LAST-MODIFIED:20220127
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:N. LAFLORENCIE: Many-body localization and topological order in disordered interacting Ising-Majorana chains
DESCRIPTION:\n         I will start by giving a general introduction to the so-called Many-Body Localization (MBL) phenomenon which occurs in a large class of disordered and interacting quantum systems. Then, I will discuss our recent results [1] obtained for Z2-symmetric disordered interacting Ising-Majorana chains at high energy for which a very rich phase diagram emerges with two distinct MBL regimes separated by a broad ergodic phase.\n\n\n\nWe have also found that localization-protected topological edge states survive interactions, and are always associated with a many-body spectral pairing. In contrast, any interaction destabilizes the (non-interacting) infinite randomness critical point towards thermalization, and we show evidence that its close vicinity also gets delocalized by weak interactions, as long as the typical localization length remains larger than the so-called avalanche threshold.\n\n\n\n[1] NL, G. Lemarié, and N. Macé, arXiv:2201.00556\n
URL:https://www.lps.u-psud.fr/events/03022022laflorencie/
ORGANIZER;CN=Andrej Meszaros:MAILTO:
CATEGORIES:Séminaire de la Théorie de la Matière Condensée
LOCATION:Zoom (Online)
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