Ritort F
Department of Physics, Faculty of Physics, University of Barcelona, Diagonal 647, 08028 Barcelona, Spain.
J Phys Chem B. 2005 Apr 14;109(14):6787-92. doi: 10.1021/jp045380f.
In this paper, we investigate nonequilibrium temperatures in a two-state system driven to a nonequilibrium steady state by the action of an oscillatory field. The nonequilibrium temperature is determined by coupling a small cavity or probe to the nonequilibrium system and studying the fluctuating noise in the cavity, as has been proposed in the context of glassy systems. We show the presence of resonant effects in the nonequilibrium temperature and discuss the existence of a constitutive steady-state equation in such nonequilibrium conditions. We propose this simple model as an excellent system to carry out experimental measurements of nonequilibrium temperatures. This may help to better understand the physical meaning of such an elusive concept.
在本文中，我们研究了在振荡场作用下被驱动至非平衡稳态的两态系统中的非平衡温度。如在玻璃态系统的背景下所提出的，通过将一个小腔或探针与非平衡系统耦合，并研究腔中的涨落噪声来确定非平衡温度。我们展示了非平衡温度中共振效应的存在，并讨论了在这种非平衡条件下本构稳态方程的存在性。我们提出这个简单模型作为进行非平衡温度实验测量的理想系统。这可能有助于更好地理解这样一个难以捉摸的概念的物理意义。
