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Statistical properties of the heat flux between two nonequilibrium steady-state thermostats
Physical Review E ( IF 2.2 ) Pub Date : 2021-04-29 , DOI: 10.1103/physreve.103.042143 Mona Lameche , Antoine Naert
Physical Review E ( IF 2.2 ) Pub Date : 2021-04-29 , DOI: 10.1103/physreve.103.042143 Mona Lameche , Antoine Naert
We address the question of transport of heat in out-of-equilibrium systems. The experimental setup consists in two coupled granular gas nonequilibrium steady-state (NESS) heat baths, in which Brownian-like rotors are imbedded. These rotors are electromechanically coupled, thanks to DC micromotors, through a resistor such that energy flows between them. The average flux depends linearly in the difference in the baths' temperature. Varying allows extrapolation in the nondissipative coupling limit (). We show that in this limit the heat flux obeys the fluctuation theorem in a form proposed by Jarzynski and Wójcik in 2004 [C. Jarzynski and D. K. Wójcik, Phys. Rev. Lett. 92, 230602 (2004)] for the fluctuations of the flux between finite size equilibrium heat baths.
中文翻译:
两个非平衡稳态恒温器之间的热通量的统计特性
我们解决不平衡系统中的热传递问题。实验装置包括两个耦合的粒状气体非平衡稳态(NESS)热浴,其中嵌入了布朗式转子。这些转子通过直流微电机通过电阻器机电耦合使能量在它们之间流动。平均通量与浴温差成线性关系。变化的 允许外推非耗散耦合极限()。我们证明,在这个极限中,热通量遵循Jarzynski和Wójcik在2004年提出的形式[C. Jarzynski和DKWójcik,物理学。莱特牧师 92,230602(2004)]为有限尺寸平衡热浴之间的磁通的波动。
更新日期:2021-04-29
中文翻译:
两个非平衡稳态恒温器之间的热通量的统计特性
我们解决不平衡系统中的热传递问题。实验装置包括两个耦合的粒状气体非平衡稳态(NESS)热浴,其中嵌入了布朗式转子。这些转子通过直流微电机通过电阻器机电耦合使能量在它们之间流动。平均通量与浴温差成线性关系。变化的 允许外推非耗散耦合极限()。我们证明,在这个极限中,热通量遵循Jarzynski和Wójcik在2004年提出的形式[C. Jarzynski和DKWójcik,物理学。莱特牧师 92,230602(2004)]为有限尺寸平衡热浴之间的磁通的波动。