Sancho J M
Universitat de Barcelona, Departament d'Estructura i Constituents de la Matèria, Martí i Franqués, 1, 08028 Barcelona, Spain.
Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Dec;92(6):062110. doi: 10.1103/PhysRevE.92.062110. Epub 2015 Dec 4.
The motion of Brownian particles when temperature is spatially dependent is studied by stochastic simulations and theoretical analysis. Nonequilibrium steady probability distributions P(st)(z,v) for both underdamped and overdamped regimes are analyzed. The existence of local kinetic energy equipartition theorem is also discussed. The transition between both regimes is characterized by a dimensionless friction parameter. This study is applied to three physical systems of colloidal particles.
通过随机模拟和理论分析研究了温度空间相关时布朗粒子的运动。分析了欠阻尼和过阻尼状态下的非平衡稳态概率分布(P_{st}(z,v))。还讨论了局部动能均分定理的存在性。两种状态之间的转变由无量纲摩擦参数表征。该研究应用于胶体粒子的三个物理系统。
