An Efficient Monte-Carlo Method for Calculating Free Energy in Long-Range Interacting Systems

  title={An Efficient Monte-Carlo Method for Calculating Free Energy in Long-Range Interacting Systems},
  author={Kazuya Watanabe and Munetaka Sasaki},
  journal={Journal of the Physical Society of Japan},
We present an efficient Monte-Carlo method for long-range interacting systems to calculate free energy as a function of an order parameter. In this method, a variant of the Wang–Landau method regarding the order parameter is combined with the stochastic cutoff method, which has recently been developed for long-range interacting systems. This method enables us to calculate free energy in long-range interacting systems with reasonable computational time despite the fact that no approximation is… Expand
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