A nonequilibrium temperature and fluctuation theorem for soft-mode turbulence

Yoshiki Hidaka, Yusaku Hosokawa, Noriko Oikawa, Koyo Tamura, Rinto Anugraha, Shoichi Kai

研究成果: Contribution to journalArticle査読

15 被引用数 (Scopus)

抄録

Non-thermal Brownian motion of a particle for soft-mode turbulence (SMT) in the electroconvection of a nematic liquid crystal has been experimentally investigated to clarify the statistical and thermodynamical aspects of SMT, using the Lagrangian picture in hydrodynamics. The effective temperature for SMT is obtained in two different ways based on the Einstein relation and the fluctuation theorem from the diffusion due to non-thermal particle fluctuations. The temperatures from the two methods agree well and exhibit a high value of 106 K. They depend on the coarse-graining time, which reflects the anomalous properties of the macroscopic fluctuations for the SMT.

本文言語英語
ページ(範囲)735-738
ページ数4
ジャーナルPhysica D: Nonlinear Phenomena
239
11
DOI
出版ステータス出版済み - 6 1 2010

All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 数理物理学
  • 凝縮系物理学
  • 応用数学

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