Quantum dynamics of spontaneous magnetic flux in closed 0-π Josephson junction systems

被引：0

作者：

Koyama, T. ^{[1
]}

Machida, M.

Kato, M.

Ishida, T.

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Japan Atom Energy Res Inst, CCSE, Tokyo 1100015, Japan

[3] Osaka Prefecture Univ, Dept Math Sci, Sakai, Osaka 5998577, Japan

[4] Osaka Prefecture Univ, Dept Phys & Elect, Sakai, Osaka 5998577, Japan

[5] CREST, JST, Kawaguchi 3320012, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期

关键词：

pi junction; d-wave superconductor; two-level system; qubit;

D O I：

10.1016/j.jmmm.2006.10.573

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a theory for the phase dynamics of a closed 0 - pi Josephson junction formed by d(x2-y2)- wave and s- wave superconductors in which spontaneous magnetic flux appears. We show that this system can be mapped on a quantum two- level system when the system size is small enough. (c) 2006 Elsevier B. V. All rights reserved.

引用

页码：E90 / E92

页数：3

共 4 条

[1]

Harlingen D J Van, 1995, REV MOD PHYS, V67, P515, DOI [10.1103/RevModPhys.67.515, DOI 10.1103/REVMODPHYS.67.515]

[2] Ordering and manipulation of the magnetic moments in large-scale superconducting π-loop arrays [J].

Hilgenkamp, H ;

Ariando ;

Smilde, HJH ;

Blank, DHA ;

Rijnders, G ;

Rogalla, H ;

Kirtley, JR ;

Tsuei, CC .

NATURE, 2003, 422 (6927) :50-53

[3] Pairing symmetry in cuprate superconductors [J].

Tsuei, CC ;

Kirtley, JR .

REVIEWS OF MODERN PHYSICS, 2000, 72 (04) :969-1016

[4]

UMEZAWA H, 1982, THERMO FIELD DYNAMIC, pCH10

← 1 →