VACUUM FIELDS IN THE SCHWINGER MODEL

被引：51

作者：

SMILGA, AV

机构：

[1] Institute for Theoretical Physics, Bern University, 3012 Bern

[2] ITEP, Moscow

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.46.5598

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We suggest a simple model of a ''vortex-antivortex liquid'' for the characteristic Euclidean gauge-field configuration giving the main contribution to the path integral in the two-dimensional Schwinger model. The spectrum of the Dirac operator in this model has a nonzero volume density of eigenvalues rho(lambda) at lambda=0 which gives rise to a nonzero fermion condensate [psipsiBAR]0. The model reproduces also the correct qualitative behavior for the field-strength correlator (E(x)E(y)) and for the Wilson loop. The implications for QCD are discussed.

引用

页码：5598 / 5606

页数：9

共 22 条

[1]

[Anonymous], 1988, QCD VACUUM HADRONS S

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