No sign problem in one-dimensional path integral Monte Carlo simulation of fermions: A topological proof

被引:1
|
作者
Chin, Siu A. [1 ]
机构
[1] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA
关键词
SYSTEMS;
D O I
10.1103/PhysRevE.107.035305
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
This paper shows that, in one dimension, due to its topology, a closed-loop product of short-time propagators is always positive, despite the fact that each antisymmetric free fermion propagator can be of either sign.
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页数:5
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