Direct measurements of relaxation time scales in Josephson junctions

被引：8

作者：

Fabeni, P

Linari, R

Mugnai, D

Nikl, M

Pazzi, GP

Ranfagni, A

Salvini, L

Cristiano, R

Frunzio, L

Lanzi, L

Ventura, G

Cetica, M

Schulman, LS

机构：

[1] CNR,IST CIBERNET,I-80125 NAPLES,ITALY

[2] UNIV FLORENCE,DIPARTIMENTO FIS,FLORENCE,ITALY

[3] IST NAZL OTTICA,FLORENCE,ITALY

[4] CLARKSON UNIV,DEPT PHYS,POTSDAM,NY

来源：

SOLID STATE COMMUNICATIONS | 1996年 / 97卷 / 06期

关键词：

superconductors; tunneling;

D O I：

10.1016/0038-1098(95)00704-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We describe an experimental method for obtaining a direct measurement of the lifetime tau(d) of the zero-voltage state in Josephson junctions operating at temperatures around 1 K (thermal regime). The range of tau(d) covered by this method runs typically from 10(-3) to 10(-6) sec. The comparison of the experimental results with the theoretical predictions is also a test of the effective temperature of the junction. The possibility of extending the procedure for the determination of other time-scales, such as those involved in quantum-Zeno effect and traversal time, are discussed.

引用

页码：439 / 444

页数：6

共 7 条

[1] JOSEPHSON JUNCTION COUPLED TO AN OPEN TRANSMISSION-LINE - AN APPLICATION TO THE THEORY OF MACROSCOPIC QUANTUM TUNNELING [J].