BEGIN:VCALENDAR VERSION:2.0 PRODID:-//wp-events-plugin.com//6.4.7.2//EN TZID:Europe/Paris X-WR-TIMEZONE:Europe/Paris BEGIN:VEVENT UID:0-1116@lptms.universite-paris-saclay.fr DTSTART;TZID=Europe/Paris:20260313T140000 DTEND;TZID=Europe/Paris:20260313T150000 DTSTAMP:20260225T085323Z URL:http://www.lptms.universite-paris-saclay.fr/seminars/informal-quantum- seminar-martina-giachello-gssi-laquila/ SUMMARY:Informal Quantum Seminar: Martina Giachello (GSSI\, L'Aquila) - Sal le des séminaires du FAST et du LPTMS\, bâtiment Pascal n°530 - 13 Mar 26 14:00 DESCRIPTION:Localization and "classical entanglement" in the discrete non-l inear Schrödinger equation\nMartina Giachello (GSSI\, L'Aquila)\n \;\ nIn this talk we present a detailed numerical study of the very peculiar t hermodynamic properties of the localized high-energy phase of the Discrete Non-Linear Schrödinger Equation (DNLSE). A numerical ampling of the micr ocanonical ensemble done by means of Hamiltonian dynamics reveals a new an d subtle relation between the presence of the localized phase and a proper ty of the system that we have called "classical entanglement". Our main fi nding is that a quantity defined for our classical system in perfect analo gy with the entanglement entropy of quantum ones\, and that we have theref orecalled Sent\, grows with the system size N in the localized phase as Se nt(N) ~ log(N)\, therefore revealing the presence of subtle non-local corr elations between any finite portion of the system and the rest of it. This manifestation of "classical entanglement" beautifully captures the lack o f system separability in the DNLSE localized phase\, revealing how statist ical correlations specific to the microcanonical ensemble and non-reproduc ible in the canonical one\, may concur to determine a property totally ana logous to the one produced by non-local quantum correlations. CATEGORIES:seminars LOCATION:Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°53 0\, rue André Riviere\, Orsay\, 91405\, France X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Riviere\, Orsay\ , 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°530:geo:0,0 END:VEVENT BEGIN:VTIMEZONE TZID:Europe/Paris X-LIC-LOCATION:Europe/Paris BEGIN:STANDARD DTSTART:20251026T020000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET END:STANDARD END:VTIMEZONE END:VCALENDAR