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UID:0-1023@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20250408T110000
DTEND;TZID=Europe/Paris:20250408T120000
DTSTAMP:20250404T080610Z
URL:https://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lpt
 ms-rupak-majumder/
SUMMARY:Séminaire du LPTMS : Rupak Majumder (TIFR Mumbai) - Salle des sém
 inaires du FAST et du LPTMS\, bâtiment Pascal n°530 - 8 Avr 25 11:00
DESCRIPTION:Manipulating phases in many-body interacting systems with subsy
 stem resetting\nRupak Majumder (TIFR Mumbai)\n&nbsp\;\nConsider a thermody
 namic system that shows phase transition between an ordered and a disorde
 red phase. We ask: In the parameter regime in which the system exhibits a
  disordered phase\, can we induce order in the entire system by repeatedly
  resetting only a specific part of the system into an ordered state at ran
 dom times? If yes\, then we can control the macroscopic phase of a system 
 by controlling only a (extensive) part of the system. More generally\, c
 an the macroscopic phase of a system be altered by resetting a part of it 
 into a suitable phase?\nWe study these questions in different spin and osc
 illator models\, both equilibrium and non-equilibrium\, mean-field and non
 -mean-field\, with and without quenched disorder. We observe that\, just b
 y changing a few control parameters--the size of the subsystem we reset\, 
 how fast we reset\, and at what configuration we reset--we can not only mo
 dify the system’s phases but also shift transition points and alter the 
 nature of the transitions. Furthermore\, despite the non-reset subsystem 
 retaining memory of the entire dynamics\, we obtain analytical predictions
  that are validated by simulations.
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:20250330T030000
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