Weeks-Chandler-Andersen reference system model

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The Weeks-Chandler-Andersen reference system model consists of the purely repulsive part of the Weeks-Chandler-Andersen perturbation theory, i.e.

\Phi_{\rm repulsive} (r) = \left\{ 
\Phi_{\rm LJ}(r) + \epsilon & {\rm if} \; r < 2^{1/6}\sigma \\
0 &  {\rm if} \; r \ge 2^{1/6}\sigma 
\end{array} \right.

where \Phi_{\rm LJ}(r) represents the Lennard-Jones model.

Melting line[edit]


Equation of state[edit]

[2] [3]

Phase diagram[edit]



Has been used as a model for colloids [5].


Related reading