Properties of the fixed point lattice Dirac operator in the Schwinger model

被引：13

作者：

Farchioni, F

Laliena, V

机构：

[1] Graz Univ, Inst Theoret Phys, A-8010 Graz, Austria

[2] Univ Bern, Inst Theoret Phys, CH-3012 Bern, Switzerland

来源：

PHYSICAL REVIEW D | 1998年 / 58卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.58.054501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a numerical study of the properties of the fixed point lattice Dirac operator in the Schwinger model. We verify the theoretical bounds on the spectrum, the existence of exact zero modes with definite chirality, and the index theorem. We show by explicit computation that it is possible to find an accurate approximation to the fixed point Dirac operator containing-only very local couplings. [S0556-2821(98)07515-8]

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页数：14

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