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UID:0-891@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20230922T140000
DTEND;TZID=Europe/Paris:20230922T180000
DTSTAMP:20230904T094314Z
URL:https://www.lptms.universite-paris-saclay.fr/seminars/soutenance-de-th
 ese-saverio-bocini/
SUMMARY:Soutenance de thèse : Saverio Bocini - Grand amphi\, bâtiment Pas
 cal n° 530 - 22 Sep 23 14:00
DESCRIPTION:Non-equilibrium dynamics in inhomogeneous quantum many-body sys
 tems\n&nbsp\;\n\n\n\n\n\nWe study the non-equilibrium dynamics of quantum 
 spin chains described by translationally-invariant Hamiltonians with short
 -range interactions. Special attention is given to initial states with loc
 alized inhomogeneities. Although such scenarios are often addressed by Gen
 eralized hydrodynamics (GHD)\, we consider special setups that go beyond t
 his framework. First\, we investigate the system at non-local scales that 
 are not accounted for by GHD\; by deriving exact results for connected cor
 relations in partitioning protocols\, the locality conditions necessary fo
 r GHD to work in the non-interacting case are established. Second\, we ex
 plore macroscopic effects from local perturbations\, showing that minimal 
 modifications\, such as a spin flip\, of an otherwise-stationary initial s
 tate can induce a global reconfiguration of the spin chain\; this phenomen
 on is observed perturbing jammed states and quantum scars. Finally\, inspi
 red by the low bipartite entanglement of the states exhibiting macroscopic
  effects from local perturbations\, entanglement properties of the spectru
 m in non-interacting quantum spin chains are investigated\; the study reve
 als that at most a finite small number of eigenstates satisfy the area law
 \, also showing that several relevant models exhibit none.\n\n\n\n\n\n&nbs
 p\;\n\nJury : Benjamin Doyon\, Viktor Eisler\, Maurizio Fagotti (co-direct
 eur de thèse)\, Laura Foini\, Dragi Karevski\, Léa F. Santos\, Véroniqu
 e Terras (co-directrice de thèse)
CATEGORIES:seminars
LOCATION:Grand amphi\, bâtiment Pascal n° 530\, rue André Rivière\, Ors
 ay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Rivière\, Orsay
 \, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Grand amphi\, bâtiment Pasca
 l n° 530:geo:0,0
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