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UID:0-1053@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20250704T140000
DTEND;TZID=Europe/Paris:20250704T150000
DTSTAMP:20250626T132957Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/informal-quantum-
 seminar-andrew-urichuk-universite-paris-cergy/
SUMMARY:Informal quantum seminar: Andrew Urichuk (Université Paris-Cergy) 
 - Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°530 - 4 
 Juil 25 14:00
DESCRIPTION:Generalized fluids in 1D as a wave packet gas\nAndrew Urichuk (
 Université Paris-Cergy)\n&nbsp\;\n\nMacroscopic transport in one dimensio
 nal integrable and quasi-integrable models is characterized by a universal
  framework known as Generalized Hydrodynamics (GHD). In its standard\, Eul
 er-scale\, form GHD mirrors the description of a two-dimensional compressi
 ble fluid\, however this standard formulation neglects fluctuations (both 
 thermal and quantum) and becomes unwieldy upon the introduction of integra
 bility breaking effects. Instead of introducing these corrections into the
  evolution equations our approach is to come up with a more precise charac
 terization of initial fluctuations\, analogous to fluctuating conventional
  hydrodynamics. To this end I will introduce a method wherein the fluid is
  modeled as a gas of semiclassical wavepackets\, which can easily incorpor
 ate both integrability breaking terms and a correct fluctuating extension 
 to GHD.  In this talk I will review conventional GHD and demonstrate how 
 to implement our numerically efficient wave packet gas extension. From the
  wave packet gas approach I will demonstrate the presence of long-range co
 rrelations at long-times\, where one-point observables appear thermal\, su
 ggesting deviation from 'true' thermalization at diffusive time-scales.
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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