Towards an experiment of MQC: determination of the decoherence time from energy level quantization in rf SQUIDs

被引:1
作者
Cosmelli, C
Carelli, P
Castellano, MG
Chiarello, F
Leoni, R
Torrioli, G
机构
来源
QUANTUM COHERENCE AND DECOHERENCE | 1999年
关键词
D O I
10.1016/B978-044450091-5/50053-1
中图分类号
O59 [应用物理学];
学科分类号
摘要
In view of realizing an experiment of Macroscopic Quantum Coherence with SQUIDs we have measured the effective resistance of a SQUID cooled at a temperature of 35mK. From a fit of the data with a simplified solution of the master equation describing the system dynamics we found an effective resistance R approximate to 4 Mn. This value, in the same system cooled at 4 mK, should lead to a decoherence time of approximately 1.4 mu s allowing to perform MQC measurements with a tunneling frequency of the order of few MHz.
引用
收藏
页码:245 / 248
页数:4
相关论文
共 20 条