Macroscopic resonant tunneling of magnetic flux

被引：35

作者：

Averin, DV ^{[1
]}

Friedman, JR ^{[1
]}

Lukens, JE ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.62.11802

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have developed a quantitative theory of resonant tunneling of magnetic flux between discrete macroscopically distinct quantum states in superconducting quantum interference device systems. The theory is based on the standard density-matrix approach. Its elements include the discussion of the two different relaxation mechanisms that exist for the double-well potential, and description of the "photon-assisted" tunneling driven by external rf radiation. It is shown that in the case of coherent flux dynamics, rf radiation should lead to splitting of the peaks of resonant flux tunneling, indicating that the resonant tunneling is a convenient tool for studying macroscopic quantum coherence of flux.

引用

页码：11802 / 11811

页数：10

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