Comparison of the gradient flow with cooling in SU(3) pure gauge theory

被引：72

作者：

Bonati, Claudio ^{[1
]}

D'Elia, Massimo

机构：

[1] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy

来源：

PHYSICAL REVIEW D | 2014年 / 89卷 / 10期

关键词：

TOPOLOGICAL SUSCEPTIBILITY; MONTE-CARLO; FINITE T; LATTICE; INSTANTONS; CHARGE; RENORMALIZATION; ZERO;

D O I：

10.1103/PhysRevD.89.105005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The gradient (Wilson) flow has been introduced recently in order to provide a solid theoretical framework for the smoothing of ultraviolet noise in lattice gauge configurations. It is interesting to ask how it compares with other, more heuristic and numerically cheaper smoothing techniques, such as standard cooling. In this study we perform such a comparison, focusing on observables related to topology. We show that, already for moderately small lattice spacings, standard cooling and the gradient flow lead to equivalent results, both for average quantities and configuration by configuration.

引用

页数：11

共 40 条

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