Title of article
A nonequilibrium temperature and fluctuation theorem for soft-mode turbulence
Author/Authors
Hidaka، نويسنده , , Yoshiki and Hosokawa، نويسنده , , Yusaku and Oikawa، نويسنده , , Noriko and Tamura، نويسنده , , Koyo and Anugraha، نويسنده , , Rinto and Kai، نويسنده , , Shoichi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
4
From page
735
To page
738
Abstract
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.
Keywords
Soft-mode turbulence , Einstein relation , Electroconvection , fluctuation theorem
Journal title
Physica D Nonlinear Phenomena
Serial Year
2010
Journal title
Physica D Nonlinear Phenomena
Record number
1729384
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