PERFECT LATTICE ACTION FOR ASYMPTOTICALLY FREE THEORIES

被引：23

作者：

NIEDERMAYER, F ^{[1
]}

机构：

[1] UNIV BERN, INST THEORET PHYS, CH-3012 BERN, SWITZERLAND

来源：

NUCLEAR PHYSICS B | 1994年

关键词：

D O I：

10.1016/0920-5632(94)90433-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present a method to obtain lattice actions which are free of cut-off effects even on coarse grained lattices. For the d = 2 non-linear sigma-model the corresponding classical equations of motions have scale invariant soliton solutions, and a topological charge can be defined with the same basic properties as in the continuum theory.

引用

页码：513 / 515

页数：3

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