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SUMMARY:From Anderson to Many-Body localization: Instabilities in the rand
 om-field XXZ chain - Dr Jeanne Colbois (CNRS)
DTSTART:20260212T140000Z
DTEND:20260212T151500Z
UID:TALK241639@talks.cam.ac.uk
CONTACT:Bo Peng
DESCRIPTION:Despite nearly two decades of intense study and a good underst
 anding of the ground state physics\, the effect of interactions on Anderso
 n localization at high energy remain debated\, even in one dimension. Can 
 localization persist\, giving rise to a genuine non-ergodic many-body loca
 lized phase? After recalling the main question and highlighting some eleme
 nts of the current state of the field\, I will share two short stories. Th
 e first will focus on an instability in the somewhat overlooked regime of 
 weak interactions\, and the second on large two-body correlations signalin
 g long-range cat-like states deep in the many-body localized regime.
LOCATION:Seminar Room 3\, RDC
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