Exact solution at integrable coupling of a model for the Josephson effect between small metallic grains

被引：3

作者：

Links, J ^{[1
]}

Zhou, HQ ^{[1
]}

McKenzie, RH ^{[1
]}

Gould, MD ^{[1
]}

机构：

[1] Univ Queensland, Ctr Phys Mat, Brisbane, Qld 4072, Australia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2002年 / 16卷 / 23期

基金：

澳大利亚研究理事会;

关键词：

Bethe ansatz; Josephson effect; BCS model;

D O I：

10.1142/S0217979202011949

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A model is introduced for two reduced BCS systems which are coupled through the transfer of Cooper pairs between the systems. The model may thus be used in the analysis of the Josephson effect arising from pair tunneling between two strongly coupled small metallic grains. At a particular coupling strength the model is integrable and explicit results are derived for the energy spectrum, conserved operators, integrals of motion, and wave function scalar products. It is also shown that form factors can be obtained for the calculation of correlation functions. Furthermore, a connection with perturbed conformal field theory is made.

引用

页码：3429 / 3438

页数：10

共 34 条

[1] TUNNELING BETWEEN SUPERCONDUCTORS [J].