Depletion potential in the infinite dilution limit

Abstract

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. López 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

10 pages, 5 figures; v2: few minor additions and reduction in the number of figures; v3: Fig. 2 corrected (see http://dx.doi.org/10.1063/1.4874639)

References in corpus (10)

• Extended corresponding-states behavior for particles with variable range attractions
• Depletion potential in hard-sphere mixtures: theory and applications
• Understanding depletion forces beyond entropy
• Depletion force between two large spheres suspended in a bath of small spheres: Onset of the Derjaguin limit
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• Contact values of the particle-particle and wall-particle correlation functions in a hard-sphere polydisperse fluid
• Multicomponent fluid of hard spheres near a wall
• Test of a universality ansatz for the contact values of the radial distribution functions of hard-sphere mixtures near a hard wall
• Selective-pivot sampling of radial distribution functions in asymmetric liquid mixtures

Cited by in corpus (7)

• Depletion potentials in highly size-asymmetric binary hard-sphere mixtures: Comparison of accurate simulation results with theory
• Structural and Thermodynamic Properties of Hard-Sphere Fluids
• Bridging and depletion mechanisms in colloid-colloid effective interactions: A reentrant phase diagram
• Three-body interactions in complex fluids: virial coefficients from simulation finite-size effects
• Nonadditive hard-sphere fluid mixtures: A simple analytical theory
• Depletion force in the infinite-dilution limit in a solvent of nonadditive hard spheres
• Multicomponent fluid of nonadditive hard spheres near a wall