Engineering quantum decoherence of charge qubit via a nanomechanical resonator
文献类型：期刊论文
| 作者 | Wang, YD ; Gao, YB; Sun, CP; Wang, YD , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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| 刊名 | EUROPEAN PHYSICAL JOURNAL B
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| 出版日期 | 2004 |
| 卷号 | 40期号:3页码:321-326 |
| 关键词 | States Superposition Collapse Motion Field |
| ISSN号 | 1434-6028 |
| 英文摘要 | We propose a theoretical scheme to observe the loss of quantum coherence through the coupling of the superconducting charge qubit system to a nanomechanical resonator (NAMR), which has already been successfully fabricated in experiment and is convenient to manipulate. With a similar form to the usual cavity QED system, this qubit-NAMR composite system with engineered coupling exhibits the collapse and revival phenomenon in a progressive decoherence process. Corresponding to the two components of superposition of the two charge eigenstates, the state of the nanomechanical resonator evolves simultaneously towards two distinct quasi-classical states. Therefore the generalized "which way" detection by the NAMR induces the quantum decoherence of the charge qubit. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000224549700013 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14008]  |
| 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 , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, YD,Gao, YB,Sun, CP,et al. Engineering quantum decoherence of charge qubit via a nanomechanical resonator[J]. EUROPEAN PHYSICAL JOURNAL B,2004,40(3):321-326. |
| APA | Wang, YD,Gao, YB,Sun, CP,&Wang, YD , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2004).Engineering quantum decoherence of charge qubit via a nanomechanical resonator.EUROPEAN PHYSICAL JOURNAL B,40(3),321-326. |
| MLA | Wang, YD,et al."Engineering quantum decoherence of charge qubit via a nanomechanical resonator".EUROPEAN PHYSICAL JOURNAL B 40.3(2004):321-326. |
入库方式： OAI收割
来源：理论物理研究所
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