Microsecond resolution of quasiparticle tunneling in the single-cooper-pair transistor

被引：52
|
作者：
Ferguson, A. J. [1 ]
Court, N. A. [1 ]
Hudson, F. E. [1 ]
Clark, R. G. [1 ]
机构：
[1] Univ New S Wales, Australian Res Ctr Excellence Quantum Comp Techno, Sydney, NSW 2052, Australia
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 10期
关键词：
D O I：
10.1103/PhysRevLett.97.106603
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present radio-frequency measurements on a single-Cooper-pair-transistor in which individual quasiparticle poisoning events were observed with microsecond temporal resolution. Thermal activation of the quasiparticle dynamics is investigated, and consequently, we are able to determine energetics of the poisoning and unpoisoning processes. In particular, we are able to assign an effective quasiparticle temperature to parametrize the poisoning rate.
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页数：4
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