论文标题
一阶硬球颗粒悬浮液的一阶冻结过渡的熵识别
Entropic identification of the first order freezing transition of a suspension of hard sphere particles
论文作者
论文摘要
我们分析了硬球悬浮液的实验粒子电流自动相关函数（CAF）。颗粒之间的相互作用是由溶剂中热活化的声激发介导的。这些声学模式与系统的（能量）微晶体及其正交性相连，可以用独立的布朗粒子电流来识别这些模式。因此，对系统的能源状态的分配给CAF留下了深刻的印象。这种印象提供了一种新颖的量度，可以衡量与观察到的悬架的一阶冻结过渡相吻合的堆积分数的熵和位置。
We analyse the experimental particle current auto correlation function (CAF) of suspensions of hard spheres. Interactions between the particles are mediated by thermally activated acoustic excitations in the solvent. Those acoustic modes are tantamount to the system's (energy) microstates and by their orthogonality, each of those modes can be identified with an independent Brownian particle current. Accordingly, partitioning of the system's energy states is impressed on the CAF. This impression provides a novel measure of the entropy and location of a partitioning/entropy limit at a packing fraction that coincides with that of the observed suspension's first order freezing transition.
