Monte Carlo calculations of the finite density Thirring model

被引：46

作者：

Alexandru, Andrei ^{[1
,2
]}

Basar, Gokce ^{[2
]}

Bedaque, Paulo F. ^{[2
]}

Ridgway, Gregory W. ^{[2
]}

Warrington, Neill C. ^{[2
]}

机构：

[1] George Washington Univ, Dept Phys, Washington, DC 20052 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW D | 2017年 / 95卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.95.014502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results of the numerical simulation of the two-dimensional Thirring model at finite density and temperature. The severe sign problem is dealt with by deforming the domain of integration into complex field space. This is the first example where a fermionic sign problem is solved in a quantum field theory by using the holomorphic gradient flow approach, a generalization of the Lefschetz thimble method.

引用

页数：6

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