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摘要翻译：
我们导出了偏置函数，使功偏快开关模拟中计算的自由能差的统计误差最小。以粘性流体中的颗粒为例，将最优偏置函数与其它偏置函数进行了比较。我们的分析表明，当主功值和典型功值都以高频采样时，自由能的不确定性最小。
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英文标题：
《Optimum bias for fast-switching free energy calculations》
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作者：
Harald Oberhofer and Christoph Dellago
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
We derive the bias function that minimizes the statistical error of free energy differences calculated in work-biased fast-switching simulations. The optimum bias function is compared to other bias functions using a particle pulled through a viscous fluid as an illustrative example. Our analysis indicates that the uncertainty in the free energy is smallest if both dominant and typical work values are sampled with high frequency.
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PDF链接：
https://arxiv.org/pdf/710.1529
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