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.
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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