2024-03-28T11:40:25Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02001542
2023-01-16T05:16:37Z
336:695:696
Effective Langevin equations leading to large deviation function of time-averaged velocity for a nonequilibrium Rayleigh piston
Itami, Masato
Nakayama, Yohei
Nakagawa, Naoko
Sasa, Shin-ichi
open access
© 2021 American Physical Society
We study fluctuating dynamics of a freely movable piston that separates an infinite cylinder into two regions filled with ideal gas particles at the same pressure but different temperatures. To investigate statistical properties of the time-averaged velocity of the piston in the long-time limit, we perturbatively calculate the large deviation function of the time-averaged velocity. Then, we derive an infinite number of effective Langevin equations yielding the same large deviation function as in the original model. Finally, we provide two possibilities for uniquely determining the form of the effective model.
American Physical Society
2021-02
eng
journal article
VoR
http://hdl.handle.net/2237/0002001542
https://nagoya.repo.nii.ac.jp/records/2001542
https://doi.org/10.1103/PhysRevE.103.022125
2470-0045
Physical Review E
103
2
022125
https://nagoya.repo.nii.ac.jp/record/2001542/files/PhysRevE_103_022125.pdf
application/pdf
272 KB
2021-10-18