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arXiv 1204.6330physics.comp-phphysics.chem-ph
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量子蒙特卡罗中溶剂化的框架

Framework for solvation in quantum Monte Carlo

Kathleen A. Schwarz, Ravishankar Sundararaman, Kendra Letchworth-Weaver, Tomás A. Arias, Richard G. Hennig

摘要:

采用经典的密度泛函描述的液体环境中,我们引入了一个严格的方法,扩散量子Monte Carlo计算的自由能和热力学平均的溶剂化系统,既不需要热力学采样,也不明确的溶剂电子。我们发现,这种方法产生有前途的结果和小的收敛误差的一组测试分子。它易于实现,适用于凝聚态物质的一系列挑战,包括液体环境中分子和表面反应的过渡态的研究。

英文摘要:

Employing a classical density-functional description of liquid environments, we introduce a rigorous method for the diffusion quantum Monte Carlo calculation of free energies and thermodynamic averages of solvated systems that requires neither thermodynamic sampling nor explicit solvent electrons. We find that this method yields promising results and small convergence errors for a set of test molecules. It is implemented readily and is applicable to a range of challenges in condensed matter, including the study of transition states of molecular and surface reactions in liquid environments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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