Detection mechanism for quantum phase transition in superconducting qubit array
文献类型：期刊论文
| 作者 | Wang, Ying-Dan ; Xue, Fei; Song, Zhi; Sun, Chang-Pu; Wang, YD , NTT Corp, NTT Bas Res Labs, Kanagawa 2430198, Japan
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2007 |
| 卷号 | 76期号:17页码:- |
| 关键词 | Charge Qubits Electrodynamics Model |
| ISSN号 | 1098-0121 |
| 英文摘要 | We describe a mechanism to detect quantum phase transition (QPT) in a system by a coherent probe weakly coupled to it. We illustrate this mechanism by a circuit QED architecture where a superconducting Josephson junction qubit array interacts with a one-dimensional superconducting transmission line resonator (TLR). The superconducting qubit array is modeled as an Ising chain in transverse field. Our investigation shows that the QPT phenomenon in the superconducting qubit array can be evidently revealed by the correlation spectrum of TLR output: At the critical point, the drastic broadening of spectrum indicates the occurrence of QPT. We also show the generalization of this mechanism to other QPT systems. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000251326600121 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5631]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Wang, YD , NTT Corp, NTT Bas Res Labs, Kanagawa 2430198, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Ying-Dan,Xue, Fei,Song, Zhi,et al. Detection mechanism for quantum phase transition in superconducting qubit array[J]. PHYSICAL REVIEW B,2007,76(17):-. |
| APA | Wang, Ying-Dan,Xue, Fei,Song, Zhi,Sun, Chang-Pu,&Wang, YD , NTT Corp, NTT Bas Res Labs, Kanagawa 2430198, Japan.(2007).Detection mechanism for quantum phase transition in superconducting qubit array.PHYSICAL REVIEW B,76(17),-. |
| MLA | Wang, Ying-Dan,et al."Detection mechanism for quantum phase transition in superconducting qubit array".PHYSICAL REVIEW B 76.17(2007):-. |
入库方式： OAI收割
来源：理论物理研究所
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