Exponential reduction of finite volume effects with twisted boundary conditions

被引：12

作者：

Cherman, Aleksey ^{[1
]}

Sen, Srimoyee ^{[2
]}

Wagman, Michael L. ^{[1
,3
]}

Yaffe, Laurence G. ^{[3
]}

机构：

[1] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

[2] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[3] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW D | 2017年 / 95卷 / 07期

关键词：

QUANTUM-FIELD THEORIES; ENERGY-SPECTRUM; LIGHT QUARKS; MASS; PION; DEPENDENCE; MOMENTUM;

D O I：

10.1103/PhysRevD.95.074512

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Flavor-twisted boundary conditions can be used for exponential reduction of finite volume artifacts in flavor-averaged observables in lattice QCD calculations with SU (N-f) light quark flavor symmetry. Finite volume artifact reduction arises from destructive interference effects in a manner closely related to the phase averaging which leads to large N-c volume independence. With a particular choice of flavor-twisted boundary conditions, finite volume artifacts for flavor-singlet observables in a hypercubic spacetime volume are reduced to the size of finite volume artifacts in a spacetime volume with periodic boundary conditions that is four times larger.

引用

页数：13

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