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DTSTART;TZID=Europe/Paris:20240910T140000
DTEND;TZID=Europe/Paris:20240910T153000
DTSTAMP:20260417T145314
CREATED:20240824T082047Z
LAST-MODIFIED:20240829T082333Z
UID:10944-1725976800-1725982200@fermi.univ-tlse3.fr
SUMMARY:Information theory bounds on randomness-based phase transitions. - (Noa Feldman / LPT / Seminar). - 10/09/2024\, 14H
DESCRIPTION:Noa Feldman(Université de Tel Aviv) \nSeminar LPT\, 10/09/2024\, 14H\, 3R1\, seminar room\, 3rd floor \nAbstract : \nWe introduce a new perspective on the connection between many-body physics and information theory. We study phase transitions in models with randomness\, such as localization in disordered systems\, or random quantum circuits with measurements. \nUtilizing information-based arguments regarding probability distribution differentiation\, rigorous results for bounds on critical exponents in such phase transitions are obtained with a minimal amount of work.\nWe first demonstrate our method by rederiving the well known Harris criterion\, bounding \noareal-space and dynamical critical exponents in the Anderson localization transition. \nWe then move to obtain new bounds on critical exponents in many-body Fock space localization transition and localization in Coulomb-interactive models. Somewhat surprisingly\, our bounds are not obeyed by previous studies of these systems\, indicating possible inadequacies in their results\, which we discuss. Finally\, we apply our method to measurement-induced phase transition in random quantum circuits\, obtaining bounds transcending recent mapping to percolation problems. \n&nbsp; \n<hr />
URL:https://fermi.univ-tlse3.fr/event/information-theory-bounds-on-randomness-based-phase-transitions-noa-feldman-lpt-seminar-10-09-2024-14h/
LOCATION:salle de séminaire 3ème étage\, Bâtiment 3r1 Université Toulouse III\, Toulouse\, 31400\, France
CATEGORIES:Events,LPT,Seminars
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