Josephson current in Luttinger liquid-superconductor junctions

被引：46

作者：

Caux, JS

Saleur, H

Siano, F

机构：

[1] Univ Oxford, Oxford OX1 3NP, England

[2] Univ Oxford All Souls Coll, Oxford OX1 4AL, England

[3] Univ So Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.88.106402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the Josephson current through a Luttinger liquid in contact with two superconductors. We show that it can be deduced from the Casimir energy in a two-boundary version of the sine-Gordon model. We develop a new thermodynamic Bethe ansatz, which, combined with a subtle analytic continuation procedure, allows us to calculate this energy in closed form, and obtain the complete current-crossover function from the case of complete normal to complete Andreev reflection.

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页数：4

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