CONFINEMENT AND MONOPOLES IN LATTICE QCD

被引：30

作者：

DELDEBBIO, L

DIGIACOMO, A

MAGGIORE, M

OLEJNIK, S

机构：

[1] UNIV MINNESOTA,INST THEORET PHYS,MINNEAPOLIS,MN 55455

[2] IST NAZL FIS NUCL,I-56100 PISA,ITALY

[3] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

来源：

PHYSICS LETTERS B | 1991年 / 267卷 / 02期

关键词：

D O I：

10.1016/0370-2693(91)91257-V

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate monopoles defined by different abelian projections, in SU(2) lattice gauge theory. We point out that the usual definition of the monopole density is plagued by lattice artifacts, and that the density is not related to confinement. A modification of the monopole density with respect to the vacuum does exist inside the chromoelectric flux tubes connecting heavy qqBAR pairs. However, this modification depends on the specific abelian projection used to define monopoles. We argue that the monopole density is not an order parameter for confinement.

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页码：254 / 260

页数：7

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