| Collapse and revival of a single—Cooper—pair box in a single—mode quantized field |
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| 引用本文： | 姚延荪,邹健,邵彬. Collapse and revival of a single—Cooper—pair box in a single—mode quantized field[J]. 中国物理, 2003, 12(6): 649-654. DOI: 10.1088/1009-1963/12/6/314 |
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| 作者姓名： | 姚延荪 邹健 邵彬 |
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| 作者单位： | Department of Physics, Beijing Institute of Technology, Beijing 100081, China |
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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 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.
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| 关 键 词： | 量子力学 量子化 库珀对 Cooper对 约瑟夫森效应 弱连接 涨落现象 衰减速率 低温 |
| 收稿时间： | 2002-11-22 |
Collapse and revival of a single-Cooper-pair box in a single-mode quantized field |
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| Yao Yan-Sun,Zou Jian and Shao Bin. Collapse and revival of a single-Cooper-pair box in a single-mode quantized field[J]. Chinese Physics, 2003, 12(6): 649-654. DOI: 10.1088/1009-1963/12/6/314 |
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| Authors: | Yao Yan-Sun Zou Jian Shao Bin |
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| Affiliation: | Department of Physics, Beijing Institute of Technology, Beijing 100081, China |
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| 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. |
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| Keywords: | Josephson junction quantized field collapse and revival damping rate |
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