Consistent approach for quantum measurement
文献类型：期刊论文
| 作者 | Zhang, P ; Liu, XF; Sun, CP; Zhang, P , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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| 刊名 | PHYSICAL REVIEW A
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| 出版日期 | 2002 |
| 卷号 | 66期号:4页码:- |
| 关键词 | Wave-function Collapse Current Situation Packet Collapse Decoherence Superposition States Environment Mechanics Model |
| ISSN号 | 1050-2947 |
| 英文摘要 | In a close form without referring the time-dependent Hamiltonian to the total system, a consistent approach for quantum measurement is proposed based on Zurek's triple model of quantum decoherence [W. Zurek, Phys. Rev. D 24, 1516 (1981)]. An exactly solvable model based on the intracavity system is dealt with in detail to demonstrate the central idea in our approach: by peeling off one collective variable of the measuring apparatus from its many degrees of freedom, as the pointer of the apparatus, the collective variable decouples with the internal environment formed by the effective internal variables, but still interacts with the measured system to form a triple entanglement among the measured system, the pointer, and the internal environment. As another mechanism to cause decoherence, the uncertainty of relative phase and its many-particle amplification can be summed up to an ideal entanglement or a Shmidt decomposition with respect to the preferred basis. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000179502200014 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13424]  |
| 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 | Zhang, P , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang, P,Liu, XF,Sun, CP,et al. Consistent approach for quantum measurement[J]. PHYSICAL REVIEW A,2002,66(4):-. |
| APA | Zhang, P,Liu, XF,Sun, CP,&Zhang, P , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2002).Consistent approach for quantum measurement.PHYSICAL REVIEW A,66(4),-. |
| MLA | Zhang, P,et al."Consistent approach for quantum measurement".PHYSICAL REVIEW A 66.4(2002):-. |
入库方式： OAI收割
来源：理论物理研究所
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