Szamel Grzegorz
Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
Phys Rev Lett. 2017 Oct 13;119(15):155502. doi: 10.1103/PhysRevLett.119.155502.
We propose a simple theory for the dynamics of model glass-forming fluids, which should be solvable using a mean-field-like approach. The theory is based on transparent physical assumptions, which can be tested in computer simulations. The theory predicts an ergodicity-breaking transition that is identical to the so-called dynamic transition predicted within the replica approach. Thus, it can provide the missing dynamic component of the random first order transition framework. In the large-dimensional limit the theory reproduces the result of a recent exact calculation of Maimbourg et al. [Phys. Rev. Lett. 116, 015902 (2016)PRLTAO0031-900710.1103/PhysRevLett.116.015902]. Our approach provides an alternative, physically motivated derivation of this result.
我们提出了一种关于模型玻璃形成流体动力学的简单理论,该理论应该可以用一种类似平均场的方法求解。该理论基于清晰的物理假设,这些假设可以在计算机模拟中进行检验。该理论预测了一个遍历性破坏转变,它与在副本方法中预测的所谓动态转变相同。因此,它可以提供随机一阶转变框架中缺失的动态部分。在大维度极限下,该理论重现了迈姆堡等人最近的精确计算结果[《物理评论快报》116, 015902 (2016)PRLTAO0031 - 900710.1103/PhysRevLett.116.015902]。我们的方法为这个结果提供了一种基于物理动机的替代推导。