Quantum coherence in a mesoscopic Josephson junction

被引：9

作者：

Zou, J ^{[1
]}

Shao, B ^{[1
]}

机构：

[1] Beijing Inst Technol, Dept Appl Phys, Beijing 100081, Peoples R China

来源：

PHYSICS LETTERS A | 1999年 / 256卷 / 5-6期

关键词：

D O I：

10.1016/S0375-9601(99)00248-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider a mesoscopic Josephson junction in a circular superconducting ring which encloses a magnetostatic flux. It is shown that the state of the junction can evolve in a quantum superposition of two coherent states. It is also shown that the destructive interference between these two states suppresses the supercurrent, and the dynamic behavior of the supercurrent shows collapse and revival phenomena. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：375 / 378

页数：4

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