Abstract

We study the Jellium model of Wigner at finite, non-zero, temperature through a computer simulation using the canonical path integral worm algorithm where we successfully implemented the fixed-node free particle restriction necessary to circumvent the fermion sign problem. Our results show good agreement with the recent simulation data of Brown et al. and of other similar computer experiments on the Jellium model at high density and low temperature. Our algorithm can be used to treat any quantum fluid model of fermions at finite, non-zero, temperature and has never been used before in the literature.

Graphic abstract

中文翻译：

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使用受限蠕虫算法在有限温度下形成果酱

摘要

我们通过使用规范路径积分蠕虫算法的计算机仿真，研究了有限，非零温度下Wigner的Jellium模型，在该模型中，我们成功实现了规避费米子符号问题所必需的固定节点自由粒子限制。我们的结果与Brown等人的最新模拟数据吻合良好。以及在高密度和低温下对Jellium模型进行的其他类似计算机实验。我们的算法可用于在有限的，非零的温度下处理费米子的任何量子流体模型，并且在文献中从未使用过。

图形摘要