Dependence of Switching Current Distribution of a Current-Biased Josephson Junction on Microwave Frequency

被引：0
|
作者：
翟计全 [1 ]
李永超 [1 ]
史建新 [1 ]
周渝 [1 ]
李小虎 [1 ]
许伟伟 [1 ]
孙国柱 [1 ]
吴培亨 [1 ]
机构：
[1] Research Institute of Superconductor Electronics,School of Electronic Science and Engineering,Nanjing University
来源：
Chinese Physics Letters | 2015年 / 32卷 / 04期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
Dependence of Switching Current Distribution of a Current-Biased Josephson Junction on Microwave Frequency;
D O I：
暂无
中图分类号：
O413 [量子论];
学科分类号：
070201 ;
摘要：
We investigate the distribution of the switching current of a current-biased Josephson junction(CBJJ) and its dependence on the microwave frequency using two theoretical methods,one of which is the quantum trajectory method and the other is the master equation method.Both the methods show that the distribution of the switching current of CBJJ will exhibit double peaks in a certain range of microwave frequency if proper microwave power is given,and the gap between the two peaks will increase with the microwave frequency.The obtained results can be used to identify the energy difference of the ground and first excited states in a Josephson junction for any bias current.
引用
收藏
页码：122 / 125
页数：4
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