PAIRING OF 2-DIMENSIONAL FERMIONS DUE TO SINGULAR INTERACTIONS

被引：11

作者：

KHVESHCHENKO, DV ^{[1
]}

机构：

[1] LD LANDAU THEORET PHYS INST,MOSCOW 117940,RUSSIA

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.47.3446

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study a finite-temperature spectrum renormalization and s-wave pairing instability in a system of fermions with an attractive ''current-current'' interaction mediated by an. overdamped mode with a dispersion omega=iGAMMA-1q2+eta, 0 less-than-or-equal-to eta less-than-or-equal-to 1. It generalizes the case of a transverse gauge interaction between spinons in Mott insulators, which drives an instability of a homogeneous resonant valence bond state towards a dimerization.

引用

页码：3446 / 3449

页数：4

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