Chattoraj Joyjit, Ciamarra Massimo Pica
School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
CNR-SPIN, Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy.
Phys Rev Lett. 2020 Jan 17;124(2):028001. doi: 10.1103/PhysRevLett.124.028001.
The attractive tail of the intermolecular interaction affects very weakly the structural properties of liquids, while it affects dramatically their dynamical ones. Via the numerical simulations of model systems not prone to crystallization, both in three and in two spatial dimensions, here we demonstrate that the nonperturbative dynamical effects of the attractive forces are tantamount to a rescaling of the activation energy by the glass transition temperature T_{g}: systems only differing in their attractive interaction have the same structural and dynamical properties if compared at the same value of T/T_{g}.
分子间相互作用的吸引尾对液体的结构性质影响甚微，而对其动力学性质影响显著。通过对不易结晶的模型系统在三维和二维空间中的数值模拟，我们在此证明，吸引力的非微扰动力学效应等同于用玻璃化转变温度Tg对活化能进行重新标度：如果在相同的T/Tg值下进行比较，仅吸引相互作用不同的系统具有相同的结构和动力学性质。
