Flavor condensate and vacuum (in-)stability in QED(2+1)

被引：16

作者：

Dittrich, W

Gies, H

机构：

[1] Inst. für Theoretische Physik, Universität Tübingen, 72076 Tübingen

来源：

PHYSICS LETTERS B | 1997年 / 392卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(96)01507-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this letter we study (2+1)-dimensional QED. The first part contains the computation of the flavor symmetry-breaking condensate and its relation to the trace of the energy-momentum tensor, while the second part is concerned with the computation of the effective action allowing for non-constant static external magnetic fields. We do not find that space derivatives in the magnetic field lower the energy of the ground state as compared to a constant field configuration.

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页码：182 / 188

页数：7

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