Fluid Critical Points from Simulations: the Bruce-Wilding method and Yang-Yang anomalies

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A critique is presented of the frequently used Bruce-Wilding (BW) mixed-field scaling method for estimating the critical points of nonsymmetric model fluids from grand canonical simulation data. An explicit, systematic technique for implementing this method is set out thereby revealing clearly a fortunate, close cancelation of contributions from the leading correction- to-scaling and thermal scaling functions that makes the method effective for Ising-type systems but which lacks a general theoretical basis. Pressure mixing is considered in this work which modifies the leading behavior of the critical density estimator while the critical temperature estimator maintains the leading behavior asserted by BW.
Submitted to Journal of Physical Chemistry in honor of Hans Andersen

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/22423

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0310247
 http://arxiv.org/abs/cond-mat/0310247

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arXiv