The Square-Shoulder-Asakura-Oosawa model

Riccardo Fantoni

doi:10.1016/j.physa.2016.03.024

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arXiv · 1602.02354

The Square-Shoulder-Asakura-Oosawa model

Riccardo Fantoni

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Abstract

A new model for a colloidal size-asymmetric binary mixture is proposed: The Square-Shoulder-Asakura-Oosawa. This belongs to the larger class of non-additive hard-spheres models and has the property that its effective pair formulation is exact whenever the solvent particle fits inside the interstitial region of three touching solute particles. Therefore one can study its properties from the equivalent one-component effective problem. Some remarks on the phase diagram of this new model are also addressed.

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Riccardo Fantoni. 2016-02-07. The Square-Shoulder-Asakura-Oosawa model. https://doi.org/10.1016/j.physa.2016.03.024

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