论文标题
在相同玻色子系统中Green功能的路径积分分子动力学模拟
Path integral molecular dynamics simulations for Green's function in a system of identical bosons
论文作者
论文摘要
路径积分分子动力学（PIMD）已成功应用于最近的工作中对大型骨系统的模拟（Hirshberg等，PNAS，116，21445（2019））。在这项工作中，我们扩展了PIMD技术，以研究Green在玻色粒系统中的功能。我们证明了原始PIMD方法的开发使我们能够计算Green的功能并从模拟中提取动量分布。我们还将我们的方法应用于相同的相互作用玻色子系统，以研究Berezinskii-kosterlitz-围绕其临界温度的无用过渡。
Path integral molecular dynamics (PIMD) has been successfully applied to perform simulations of large bosonic systems in a recent work (Hirshberg et al., PNAS, 116, 21445 (2019)). In this work we extend PIMD techniques to study Green's function for bosonic systems. We demonstrate that the development of the original PIMD method enables us to calculate Green's function and extract momentum distribution from our simulations. We also apply our method to systems of identical interacting bosons to study Berezinskii-Kosterlitz-Thouless transition around its critical temperature.
