AC JOSEPHSON EFFECT IN A SINGLE QUANTUM CHANNEL

被引:391
作者
AVERIN, D
BARDAS, A
机构
[1] Department of Physics, State University of New York at Stony Brook, New York
关键词
D O I
10.1103/PhysRevLett.75.1831
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have calculated all the components of the current in a short one-dimensional channel between two superconductors for arbitrary voltages and transparencies D of the channel. We demonstrate that in the ballistic limit (D similar or equal to 1) the crossover between the quasistationary evolution of the Josephson phase difference phi at small voltages and transport by multiple Andreev reflections at larger voltages can be described as the Landau-Zener transition induced by finite reflection in the channel. For perfect transmission and vanishing energy relaxation rates the stationary current-phase relation is never recovered, and l(phi) = I-c\sin phi\2\sgn V for arbitrary small voltages.
引用
收藏
页码:1831 / 1834
页数:4
相关论文
共 17 条
[1]   SUPERCONDUCTING TUNNELING WITHOUT THE TUNNELING HAMILTONIAN .2. SUBGAP HARMONIC STRUCTURE [J].
ARNOLD, GB .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1987, 68 (1-2) :1-27
[2]   SUPERCONDUCTING TUNNELING WITHOUT THE TUNNELING HAMILTONIAN [J].
ARNOLD, GB .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1985, 59 (1-2) :143-183
[3]  
BAO Z, IN PRESS IEEE T APPL
[4]   UNIVERSAL LIMIT OF CRITICAL-CURRENT FLUCTUATIONS IN MESOSCOPIC JOSEPHSON-JUNCTIONS [J].
BEENAKKER, CWJ .
PHYSICAL REVIEW LETTERS, 1991, 67 (27) :3836-3839
[5]  
Bratus E. N., 1979, Soviet Physics - Solid State, V21, P1509
[6]   THEORY OF SUBHARMONIC GAP STRUCTURE IN SUPERCONDUCTING MESOSCOPIC TUNNEL CONTACTS [J].
BRATUS, EN ;
SHUMEIKO, VS ;
WENDIN, G .
PHYSICAL REVIEW LETTERS, 1995, 74 (11) :2110-2113
[7]   A UNIFIED THEORY OF CLEAN JOSEPHSON-JUNCTIONS [J].
FURUSAKI, A ;
TSUKADA, M .
PHYSICA B, 1990, 165 :967-968
[8]   BALLISTIC CHARGE-TRANSPORT IN SUPERCONDUCTING WEAK LINKS [J].
GUNSENHEIMER, U ;
ZAIKIN, AD .
PHYSICAL REVIEW B, 1994, 50 (09) :6317-6331
[9]   EXPLANATION OF SUB-HARMONIC ENERGY-GAP STRUCTURE IN SUPERCONDUCTING CONTACTS [J].
KLAPWIJK, TM ;
BLONDER, GE ;
TINKHAM, M .
PHYSICA B & C, 1982, 109 (1-3) :1657-1664
[10]   OBSERVATION OF MULTIPLE ANDREEV REFLECTIONS IN SUPERCONDUCTING TUNNEL-JUNCTIONS [J].
KLEINSASSER, AW ;
MILLER, RE ;
MALLISON, WH ;
ARNOLD, GB .
PHYSICAL REVIEW LETTERS, 1994, 72 (11) :1738-1741