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Chinese Physics, 2003, Vol. 12(6): 649-654    DOI: 10.1088/1009-1963/12/6/314
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Collapse and revival of a single-Cooper-pair box in a single-mode quantized field

Yao Yan-Sun (姚延荪), Zou Jian (邹健), Shao Bin (邵彬)
Department of Physics, Beijing Institute of Technology, Beijing 100081, China
Abstract  We study the quantum dynamics of a single-Cooper-pair box biased by a classical voltage and also irradiated by a single-mode quantized field. We demonstrate that under weak damping of the quantized field, the collapse-revival phenomena can exist in this system, and the oscillations of the collapse and revival depend sensitively on the initial state of the single-mode quantized field and the damping rate κ. We also demonstrate that this system can show the beats phenomena.
Keywords:  Josephson junction      quantized field      collapse and revival      damping rate  
Received:  22 November 2002      Revised:  19 February 2003      Accepted manuscript online: 
PACS:  74.50.+r (Tunneling phenomena; Josephson effects)  

Cite this article: 

Yao Yan-Sun (姚延荪), Zou Jian (邹健), Shao Bin (邵彬) Collapse and revival of a single-Cooper-pair box in a single-mode quantized field 2003 Chinese Physics 12 649

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