Lefschetz thimbles and stochastic quantization: Complex actions in the complex plane

被引：44

作者：

Aarts, Gert ^{[1
]}

机构：

[1] Swansea Univ, Coll Sci, Dept Phys, Swansea SA2 8PP, W Glam, Wales

来源：

PHYSICAL REVIEW D | 2013年 / 88卷 / 09期

关键词：

LANGEVIN DYNAMICS; EQUATIONS; SYSTEMS;

D O I：

10.1103/PhysRevD.88.094501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Lattice field theories with a complex action can be studied numerically by allowing a complexified configuration space to be explored. Here we compare the recently introduced formulation on a Lefschetz thimble with the result from stochastic quantization (or complex Langevin dynamics) in the case of a simple model and contrast the distributions being sampled. We also study the role of the residual phase on the Lefschetz thimble.

引用

页数：6

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