Maes Christian, Thomas Simi R
Instituut voor Theoretische Fysica, KU Leuven, Belgium.
Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Feb;87(2):022145. doi: 10.1103/PhysRevE.87.022145. Epub 2013 Feb 28.
We investigate the nature of the effective dynamics and statistical forces obtained after integrating out nonequilibrium degrees of freedom. To be explicit, we consider the Rouse model for the conformational dynamics of an ideal polymer chain subject to steady driving. We compute the effective dynamics for one of the many monomers by integrating out the rest of the chain. The result is a generalized Langevin dynamics for which we give the memory and noise kernels and the effective force, and we discuss the inherited nonequilibrium aspects.
我们研究了在对非平衡自由度进行积分后所得到的有效动力学和统计力的性质。具体而言，我们考虑了理想聚合物链在稳态驱动下构象动力学的劳斯模型。通过对链上其他单体进行积分，我们计算了众多单体之一的有效动力学。结果是一个广义朗之万动力学，我们给出了其记忆核、噪声核和有效力，并讨论了继承的非平衡方面。
