Multichannel Kondo Impurity Dynamics in a Majorana Device

被引：76

作者：

Altland, A. ^{[1
]}

Beri, B. ^{[2
]}

Egger, R. ^{[3
]}

Tsvelik, A. M. ^{[4
]}

机构：

[1] Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany

[2] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[3] Univ Dusseldorf, Inst Theoret Phys, D-40225 Dusseldorf, Germany

[4] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 07期

关键词：

NANOWIRE; SUPERCONDUCTOR; SIGNATURE; FERMIONS;

D O I：

10.1103/PhysRevLett.113.076401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the multichannel Kondo impurity dynamics realized in a mesoscopic superconducting island connected to metallic leads. The effective "impurity spin" is nonlocally realized by Majorana bound states and strongly coupled to lead electrons by non-Fermi liquid correlations. We explore the spin dynamics and its observable ramifications near the low-temperature fixed point. The topological protection of the system raises the perspective to observe multichannel Kondo impurity dynamics in experimentally realistic environments.

引用

页数：5

共 39 条

[1] A CURRENT-ALGEBRA APPROACH TO THE KONDO EFFECT [J].