Ramírez-González P E, Medina-Noyola M
Instituto de Física 'Manuel Sandoval Vallarta', Universidad Autónoma de San Luis Potosí, Álvaro Obregón 64, 78000 San Luis Potosí, SLP, Mexico.
J Phys Condens Matter. 2009 Feb 18;21(7):075101. doi: 10.1088/0953-8984/21/7/075101. Epub 2009 Jan 5.
The concept of dynamic equivalence among mono-disperse soft-sphere fluids is employed in the framework of the self-consistent generalized Langevin equation (SCGLE) theory of colloid dynamics to calculate the ideal glass transition phase diagram of model soft-sphere colloidal dispersions in the softness-concentration state space. The slow dynamics predicted by this theory near the glass transition is compared with available experimental data for the decay of the intermediate scattering function of colloidal dispersions of soft-microgel particles. Increasing deviations from this simple scheme occur for increasingly softer potentials, and this is studied here using the Rogers-Young static structure factor of the soft-sphere systems as the input of the SCGLE theory, without assuming a priori the validity of the equivalence principle above.
在胶体动力学的自洽广义朗之万方程（SCGLE）理论框架内，运用单分散软球流体的动态等效概念，来计算模型软球胶体分散体系在软度 - 浓度状态空间中的理想玻璃化转变相图。将该理论预测的玻璃化转变附近的慢动力学与软微凝胶颗粒胶体分散体系中间散射函数衰减的现有实验数据进行比较。对于越来越软的势，与这个简单方案的偏差越来越大，在此使用软球体系的罗杰斯 - 杨静态结构因子作为SCGLE理论的输入来对此进行研究，而不事先假定上述等效原理的有效性。
