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UID:0-901@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20231214T110000
DTEND;TZID=Europe/Paris:20231214T120000
DTSTAMP:20231130T085411Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-sumilan-banerjee-iis-bangalore/
SUMMARY:Séminaire exceptionnel du LPTMS : Sumilan Banerjee (IIS Bangalore)
  - Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°530 - 1
 4 Déc 23 11:00
DESCRIPTION:Semiclassical limit of a measurement-induced phase transitionSu
 milan Banerjee (IIS Bangalore)Chaotic-to-non-chaotic transitions play a pr
 ominent role in our understanding of the dynamical phase diagram of both q
 uantum and classical systems. In quantum many-body systems\, a certain kin
 d of chaotic-non-chaotic transitions\, dubbed ‘measurement-induced phase
  transitions’ (MIPT)\, have led to a new paradigm for dynamical phase tr
 ansitions in recent years. On the other hand\, prominent examples of trans
 ition in chaos in classical dynamical systems are the stochastic synchroni
 zation transitions (ST). In this case\, classical trajectories starting fr
 om different initial conditions synchronize when subjected to sufficiently
  strong common random stochastic noise. In this talk\, I will establish a 
 possible link between MIPT and ST by considering models of interacting qua
 ntum particles whose positions are measured continuously\, albeit weakly. 
 In the semiclassical limit\, the dynamics of the system is described by a 
 stochastic Langevin equation where the noise and the dissipation terms are
  both controlled by the small quantum parameter and measurement strength. 
 I will show the existence of a chaotic-to-non-chaotic transition in the La
 ngevin evolution as a function of either interaction or noise/dissipation 
 strength. 
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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DTSTART:20231029T020000
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