Matières et Systèmes Complexes, CNRS-UMR7057, Université Paris-Diderot, 75205 Paris, France.
Phys Rev Lett. 2012 Apr 20;108(16):160601. doi: 10.1103/PhysRevLett.108.160601. Epub 2012 Apr 17.
When a Brownian object interacts with noninteracting gas particles under nonequilibrium conditions, energy dissipation associated with Brownian motion causes an additional force on the object as a "momentum transfer deficit." This principle is demonstrated first by a new nonequilibrium steady state model and then applied to several known models such as an adiabatic piston for which a simple explanation has been lacking.
当一个布朗运动物体在非平衡条件下与非相互作用的气体粒子相互作用时，与布朗运动相关的能量耗散会导致物体上产生一个额外的力，即“动量传递不足”。这一原理首先通过一个新的非平衡稳态模型得到了证明，然后应用于几个已知模型，如绝热活塞，对于后者，一直缺乏简单的解释。
