Supersymmetric models for fermions on a lattice

被引：6

作者：

Ilieva, N ^{[1
]}

Narnhofer, H

Thirring, W

机构：

[1] CERN, Div Theory, Dept Phys, CH-1211 Geneva 23, Switzerland

[2] Univ Vienna, Inst Theoret Phys, A-1090 Vienna, Austria

[3] Erwin Schrodinger Int Inst Math Phys, A-1090 Vienna, Austria

来源：

FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS | 2006年 / 54卷 / 2-3期

关键词：

D O I：

10.1002/prop.200510261

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the large-N behaviour of simple examples of supersymmetric interactions for fermions on a lattice. Witten's supersymmetric quantum mechanics and the BCS model appear just as two different aspects of one and the same model. For the BCS model, supersymmetry is only respected in a coherent superposition of Bogoliubov states. In this coherent superposition mesoscopic observables show better stability properties than in a Bogoliubov state. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：124 / 138

页数：15

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