Short-time decoherence of Josephson charge qubit nonlinearly coupling with its environment
文献类型：期刊论文
| 作者 | Liang, XT; Xiong, YJ |
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 2004-11-08 |
| 卷号 | 332页码:8-16 |
| 关键词 | short-time decoherence Josephson junction quantum computation |
| ISSN号 | 0375-9601 |
| DOI | 10.1016/j.physleta.2004.09.053 |
| 英文摘要 | At first, we generally investigate the short-time decoherence of a qubit nonlinearly coupling with a bath. The measure of the decoherence is chosen as the maximum norm of the deviation density operator. Then we concretely investigate the Josephson charge qubit (JCQ) model. It is shown that at the temperature T similar to 30 mK, the loss of fidelity (due to decoherence) of the JCQ is bigger than the DiVincenzo low decoherence criterion. The decoherence will decrease with the decrease of the experimental temperature. When the temperature decreases to T similar to 0.3 mK the DiVincenzo low decoherence criterion can be satisfied. (C) 2004 Elsevier B.V. All rights reserved. |
| WOS关键词 | OPEN QUANTUM-SYSTEMS ; STATES |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000224926100002 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/24716]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liang, XT |
| 作者单位 | 1.Ningbo Univ, Dept Phys, Ningbo 315211, Peoples R China 2.Ningbo Univ, Inst Modern Phys, Ningbo 315211, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, XT,Xiong, YJ. Short-time decoherence of Josephson charge qubit nonlinearly coupling with its environment[J]. PHYSICS LETTERS A,2004,332:8-16. |
| APA | Liang, XT,&Xiong, YJ.(2004).Short-time decoherence of Josephson charge qubit nonlinearly coupling with its environment.PHYSICS LETTERS A,332,8-16. |
| MLA | Liang, XT,et al."Short-time decoherence of Josephson charge qubit nonlinearly coupling with its environment".PHYSICS LETTERS A 332(2004):8-16. |
入库方式： OAI收割
来源：近代物理研究所
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