Optimized convergence for multiple histogram analysis
Optimized convergence for multiple histogram analysis
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DOI:
10.1016/j.jcp.2009.05.011
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发表时间:
2009-09-20
影响因子:
4.1
通讯作者:
Swendsen, Robert H.
中科院分区:
文献类型:
--
作者:
Bereau, Tristan;Swendsen, Robert H.
We propose a new algorithm for solving the weighted histogram analysis method (WHAM) equations to estimate free energies out of a set of Monte Carlo (MC) or molecular dynamics (MD) simulations. The algorithm, based on free-energy differences, provides a more natural way of approaching the problem and improves convergence compared to the widely used direct iteration method. We also study how parameters (temperature, pressure, etc.) of the independent simulations should be chosen to optimize the accuracy of the set of free energies. (C) 2009 Elsevier Inc. All rights reserved.