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UID:0-1187@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20261104T110000
DTEND;TZID=Europe/Paris:20261104T120000
DTSTAMP:20261021T081652Z
URL:https://www.lptms.universite-paris-saclay.fr/seminars/lptms-seminar-pr
 atik-nandy-cnrs-candidate/
SUMMARY:LPTMS Seminar: Pratik Nandy - CNRS candidate - Salle des séminaire
 s du FAST et du LPTMS\, bâtiment Pascal n°530 - 4 Nov 26 11:00
DESCRIPTION:Quantum chaos and complexity in Krylov space\nPratik Nandy (Vri
 je Universiteit Brussel &amp\; International Solvay Institutes\, Belgium)\
 n&nbsp\;\n\nThe dynamics of a quantum system is confined to a subspace of 
 the state or operator space\, the Krylov space\, which is often smaller th
 an the full Hilbert space. Krylov space methods therefore provide a compac
 t and computationally efficient description of quantum evolution\, which i
 s particularly useful for nonequilibrium phenomena in many-body systems wi
 th large Hilbert spaces. In this talk\, I will discuss a notion of complex
 ity defined in Krylov space and its use as a probe of operator growth\, qu
 antum chaos\, information scrambling\, and state evolution in both closed 
 and open quantum systems. Illustrative examples include quantum spin chain
 s\, Sachdev–Ye–Kitaev models\, and random matrix theory. The talk is b
 ased on selected topics from the review article arXiv:2405.09628 (Physics 
 Reports) and more recent developments.
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
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TZID:Europe/Paris
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DTSTART:20261025T020000
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