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SUMMARY:Effective Langevin equations leading to large deviation function o
f time-averaged velocity for a nonequilibrium Rayleigh piston
DTSTART;VALUE=DATE-TIME:20201204T091000Z
DTEND;VALUE=DATE-TIME:20201204T093000Z
DTSTAMP;VALUE=DATE-TIME:20230207T085900Z
UID:indico-contribution-386@zakopane.if.uj.edu.pl
DESCRIPTION:Speakers: Naoko Nakagawa (Ibaraki University)\, Masato Itami (
Nagoya University)\, Yohei Nakayama (Tohoku University)\, Shin-ichi Sasa (
Kyoto University)\n\nWe study fluctuating dynamics of a freely movable pis
ton that separates an infinite cylinder into two regions filled with ideal
gas particles at the same pressure but different temperatures. To investi
gate statistical properties of the time-averaged velocity of the piston in
the long-time limit\, we perturbatively calculate the large deviation fun
ction of the time-averaged velocity. Then\, we derive an infinite number o
f effective Langevin equations yielding the same large deviation function
as in the original model. Finally\, we provide two possibilities for uniqu
ely determining the form of the effective model.\n\nhttps://zakopane.if.uj
.edu.pl/event/16/contributions/386/
RELATED-TO:indico-event-16@zakopane.if.uj.edu.pl
URL:https://zakopane.if.uj.edu.pl/event/16/contributions/386/
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