New approach to Ginsparg-Wilson fermions

被引：93

作者：

Gattringer, C ^{[1
]}

机构：

[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.63.114501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We expand the most general lattice Dirac operator D in a basis of simple operators. The Ginsparg-Wilson equation turns into a system of coupled quadratic equations for the expansion coefficients. Our expansion of D allows for a natural cutoff and the remaining quadratic equations can be solved numerically. The procedure allows us to find Dirac operators which obey the Ginpsparg-Wilson equation with arbitrary precision.

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页数：5

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