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Fluid Critical Points from Simulations: the Bruce-Wilding method and Yang-Yang anomalies | Young C. Kim
; Michael E. Fisher
; | Date: |
10 Oct 2003 | Subject: | Statistical Mechanics | cond-mat.stat-mech | Affiliation: | University of Maryland | Abstract: | 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. | Source: | arXiv, cond-mat/0310247 | Services: | Forum | Review | PDF | Favorites |
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