Quantum fluctuations in thin superconducting wires of finite length -: art. no. 067007

被引:59
作者
Büchler, HP [1 ]
Geshkenbein, VB [1 ]
Blatter, G [1 ]
机构
[1] ETH Honggerberg, CH-8093 Zurich, Switzerland
关键词
D O I
10.1103/PhysRevLett.92.067007
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In one-dimensional wires, fluctuations destroy superconducting long-range order and stiffness at finite temperatures; in an infinite wire, quasi-long-range order and stiffness survive at zero temperature if the wire's dimensionless admittance mu is large, mu>2. We analyze the disappearance of this superconductor-insulator quantum phase transition in a finite wire and its resurrection due to the wire's coupling to its environment characterized through the dimensionless conductance K.
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页数:4
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