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SUMMARY:Macroscopic limit of nonequilibrium stochastic (thermo)dynamics - 
 Gianmaria Falasco\, Univ. Luxembourg
DTSTART:20211123T130000Z
DTEND:20211123T140000Z
UID:TALK165640@talks.cam.ac.uk
CONTACT:Camille Scalliet
DESCRIPTION:Systems in contact with multiple reservoirs fall in nonequilib
 rium states characterized by sustained currents of energy and matter. Whil
 e in small systems thermal fluctuations are accounted for by Master (or Fo
 kker-Planck) equations\, in infinite-size systems the dynamics is describe
 d by deterministic rate equations which may display\, inter alia\, multist
 ability and limit cycles. At large but finite sizes\,  nonequilibrium cond
 itions induce metastability\, namely\, small fluctuations within macroscop
 ic attractors and rare random transitions between them. This is the regime
  of interest for many natural and man-made systems\, ranging from (bio)che
 mical reaction networks to electronic circuits. Using concepts of large de
 viations theory\, I will explain such nonequilibrium emergent behavior fro
 m the microscopic stochastic dynamics and describe how (stochastic) thermo
 dynamics can be consistently formulated through all levels of description.
LOCATION:Center for Mathematical Sciences\, Lecture room MR11\, or https:/
 /maths-cam-ac-uk.zoom.us/j/98016675669
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