Self-consistent Microscopic Description of Charging Effect on Phase Coherence in Ultrasmall Josephson Tunnel Junctions

摘要：

We discuss the effect of charging energy on phase coherence from a microscopic point of view. Physics is characterized by single electron charging energy Ec and Josephson coupling energy EJ. It is shown that currents due to Cooper pair tunneling from partially phase-coherent regime (EJ/Ec ＜＜ 1) to phase-incoherent regime (EJ/Ec→0) can be seamlessty described up to higher order tunneling processes, provided that generalized charged states of the island is introduced.

作者: Shuichi IWABUCHI Yang WANG

作者单位: Department of Physics, Nara Womens University, Kitauoya-Nishimachi, Nara 630-8506, Japan Key Laboratory of Photoelectric Technology and Intelligent Control, Ministry of Education, Lanzhou J

会议类型: 国际会议

会议名称: 2007年纳米光电子学国际学术会议

会议地点: 兰州·北京

会议语种:英文

页码: 95-96

在线出版日期: 2007-07-29（万方平台首次上网日期，不代表论文的发表时间）