Fourth root prescription for dynamical staggered fermions

被引：23
作者：
Adams, DH
机构：
[1] Leiden State Univ, Inst Lorentz Theoret Phys, NL-2333 CA Leiden, Netherlands
[2] Natl Taiwan Univ, Natl Ctr Theoret Sci, Taipei 106, Taiwan
[3] Florida Int Univ, Dept Phys, Miami, FL 33199 USA
来源：
PHYSICAL REVIEW D | 2005年 / 72卷 / 11期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevD.72.114512
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
With the aim of resolving theoretical issues associated with the fourth root prescription for dynamical staggered fermions in lattice QCD simulations, we consider the problem of finding a viable lattice Dirac operator D such that (detD(staggered))(1/4)=detD. Working in the flavor field representation we show that in the free field case there is a simple and natural candidate D satisfying this relation, and we show that it has acceptable locality behavior: exponentially local with a localization range vanishing similar to root a/m for lattice spacing a -> 0. Prospects for the interacting case are also discussed, although we do not solve this case here.
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页数：12
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