Depletion potential in the infinite dilution limit

作者:Yuste Santos Bravo*; Santos Andres; Lopez de Haro Mariano
来源:Journal of Chemical Physics, 2008, 128(13): 134507.
DOI:10.1063/1.2841172

摘要

The depletion force and depletion potential between two in principle unequal "big" hard spheres embedded in a multicomponent mixture of "small" hard spheres are computed using the rational function approximation method for the structural properties of hard-sphere mixtures [S. B. Yuste, A. Santos, and M. Lopez de Haro, J. Chem. Phys. 108, 3683 (1998)]. The cases of equal solute particles and of one big particle and a hard planar wall in a background monodisperse hard-sphere fluid are explicitly analyzed. An improvement over the performance of the Percus-Yevick theory and good agreement with available simulation results are found.

  • 出版日期2008-4-7