Depletion potential in the infinite dilution limit

Details Depletion potential in the infinite dilution limit Depletion potential in the infinite dilution limit

2007-11-22

arxiv.org/abs/0711.3633v2

J. Chem. Phys. 128, 134507 (2008)

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 5 figures; v2: few minor additions and reduction in the number of figures; to be published in JCP

Scientific paper

10.1063/1.2841172

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. L\'opez de Haro, J. Chem. Phys. {\bf 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

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