Path integral molecular dynamics simulations for Green's function in a system of identical bosons
Quantum Physics
2022-04-22 v1 Quantum Gases
Statistical Mechanics
Chemical Physics
Computational Physics
Abstract
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.
Cite
@article{arxiv.2203.09919,
title = {Path integral molecular dynamics simulations for Green's function in a system of identical bosons},
author = {Xiong Yunuo and Xiong Hongwei},
journal= {arXiv preprint arXiv:2203.09919},
year = {2022}
}
Comments
20 pages, 9 figure, accepted by The Journal of Chemical Physics