A mode-coupling theory (MCT) is presented for the spin-boson model with a spectral density which accounts for a heat bath made up of lattice vibrations of a dielectric solid (superohmic dissipation). A usual decoupling approximation provides a set of non-linear integral equations which are ...
1) mode coupling theory 模式耦合理论1. The ion transfer number is introduced in the formula describing the relationship between ionic limiting molar conductivity and ionic concentration based on mode coupling theory(MCT). 在模式耦合理论推导的低浓度时离子摩尔电导率与离子浓度的关系式中 ,引入离子迁移...
A mode-coupling theory (MCT) is presented for the spin-boson model with a spectral density which accounts for a heat bath made up of lattice vibrations of a dielectric solid (superohmic dissipation). A usual decoupling approximation provides a set of non-linear integral equations which are solv...
We show that the glass transition predicted by the Mode-Coupling Theory (MCT) is a critical phenomenon with a diverging length and time scale associated to the cooperativity of the dynamics. We obtain the scaling exponents ν and z that relate space and time scales to the distance from critica...
Predictions of the mode-coupling theory (MCT) are tested with extensive ... F Weysser,D Hajnal - 《Phys.rev.e》 被引量: 31发表: 2011年 Tests of mode-coupling theory in two dimensions We analyze the glassy dynamics of binary mixtures of hard disks in two dimensions. Predictions of the...
We extend mode-coupling theory (MCT) to inhomogeneous situations, relevant for supercooled liquid in an external field. We compute the response of the dynamical structure factor to a static inhomogeneous external potential and provide the first direct evidence that the standard formulation of MCT is ...
We have performed a molecular dynamics computer simulation of a supercooledbinary Lennard-Jones system in order to compare the dynamical behavior of thissystem with the predictions of the idealized version of mode-coupling theory(MCT). By scaling the time $t$ by the temperature dependent $\alpha$...
Mode coupling theory (MCT) has been successful in explaining the observed sequence of time relaxations in dense fluids. Previous expositions of this theory showing this sequence have required the existence of an ideal glass transition temperature $T_0$. Recent experiments show no evidence of $T_0...
Mode-coupling theory (MCT) constitutes one of the few first-principles-based approaches to describe the physics of the glass transition, but the theory's inherent approximations compromise its accuracy in the activated glassy regime. Her... C Luo,LMC Janssen - 《Journal of Chemical Physics》 被...
In this set of lecture notes we review the mode-coupling theory of the glass transition from several perspectives. First, we derive mode-coupling equations for the description of density fluctuations from microscopic considerations with the use the Mori–Zwanzig projection operator technique. We also ...