中国物理B ›› 2002, Vol. 11 ›› Issue (11): 1200-1204.doi: 10.1088/1009-1963/11/11/320

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    

Dynamic behaviour of a single-Cooper-pair box in a single-mode quantized field with dissipation

姚延荪, 邹健, 邵彬   

  1. Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China
  • 收稿日期:2002-03-18 修回日期:2002-07-01 出版日期:2005-06-12 发布日期:2005-06-12

Dynamic behaviour of a single-Cooper-pair box in a single-mode quantized field with dissipation

Yao Yan-Sun (姚延荪), Zou Jian (邹健), Shao Bin (邵彬)   

  1. Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China
  • Received:2002-03-18 Revised:2002-07-01 Online:2005-06-12 Published:2005-06-12

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摘要： 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 the weak damping, the collapse-revival phenomena can exist in this system. We also demonstrate that the revivals of oscillations are sensitive to the initial coherent field and the damping rate of the single-mode quantized field.

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 the weak damping, the collapse-revival phenomena can exist in this system. We also demonstrate that the revivals of oscillations are sensitive to the initial coherent field and the damping rate of the single-mode quantized field.

Key words: Josephson junction, quantized field, collapse and revival, damping rate

中图分类号:  (Tunneling phenomena; Josephson effects)

  • 74.50.+r
74.20.Rp (Pairing symmetries (other than s-wave)) 03.65.-w (Quantum mechanics)