有限温度蒙特卡罗方法及其在超流氦团簇中的应用
The finite-temperature Monte Carlo method and its application to superfluid helium clusters
摘要：
我们回顾了使用路径积分蒙特卡罗（PIMC）方法研究有限尺寸的量子团簇，特别强调最近的应用纯和杂质掺杂的He团簇。我们描述的原则，PIMC，使用的多层次的大都会方法采样粒子排列，和用于准确地将各向异性分子-氦相互作用的路径积分计划的方法。应用嵌入原子和分子的光谱研究进行了总结，与讨论的新概念的本地和纳米尺度的超流性，已产生的最近的PIMC研究的杂质掺杂的He集群。
英文摘要：
We review the use of the path integral Monte Carlo (PIMC) methodology to the study of finite-size quantum clusters, with particular emphasis on recent applications to pure and impurity-doped He clusters. We describe the principles of PIMC, the use of the multilevel Metropolis method for sampling particle permutations, and the methods used to accurately incorporate anisotropic molecule-helium interactions into the path integral scheme. Applications to spectroscopic studies of embedded atoms and molecules are summarized, with discussion of the new concepts of local and nanoscale superfluidity that have been generated by recent PIMC studies of the impurity-doped He clusters.
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