Sudden vanishing of spin squeezing under decoherence
文献类型：期刊论文
| 作者 | Wang, XG , RIKEN, Inst Phys & Chem Res, Adv Sci Inst, Wako, Saitama 3510198, Japan; Wang, Xiaoguang; Miranowicz, Adam; Liu, Yu-xi; Sun, C. P. ; Nori, Franco
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| 刊名 | PHYSICAL REVIEW A
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| 出版日期 | 2010 |
| 卷号 | 81期号:2页码:- |
| 关键词 | Quantum-nondemolition Measurement Trapped Ions Entanglement States Spectroscopy Separability Death Light |
| ISSN号 | 1050-2947 |
| 英文摘要 | In order to witness multipartite correlations beyond pairwise entanglement, spin-squeezing parameters are analytically calculated for a spin ensemble in a collective initial state under three different decoherence channels. It is shown that, in analogy to pairwise entanglement, the spin squeezing described by different parameters can suddenly become zero at different vanishing times. This finding shows the general occurrence of sudden vanishing phenomena of quantum correlations in many-body systems, which here is referred to as spin-squeezing sudden death (SSSD). It is shown that the SSSD usually occurs due to decoherence and that SSSD never occurs for some initial states in the amplitude-damping channel. We also analytically obtain the vanishing times of spin squeezing. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000275072500030 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5164]  |
| 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, XG , RIKEN, Inst Phys & Chem Res, Adv Sci Inst, Wako, Saitama 3510198, Japan |
| 推荐引用方式 GB/T 7714 | Wang, XG , RIKEN, Inst Phys & Chem Res, Adv Sci Inst, Wako, Saitama 3510198, Japan,Wang, Xiaoguang,Miranowicz, Adam,et al. Sudden vanishing of spin squeezing under decoherence[J]. PHYSICAL REVIEW A,2010,81(2):-. |
| APA | Wang, XG , RIKEN, Inst Phys & Chem Res, Adv Sci Inst, Wako, Saitama 3510198, Japan,Wang, Xiaoguang,Miranowicz, Adam,Liu, Yu-xi,Sun, C. P.,&Nori, Franco.(2010).Sudden vanishing of spin squeezing under decoherence.PHYSICAL REVIEW A,81(2),-. |
| MLA | Wang, XG , RIKEN, Inst Phys & Chem Res, Adv Sci Inst, Wako, Saitama 3510198, Japan,et al."Sudden vanishing of spin squeezing under decoherence".PHYSICAL REVIEW A 81.2(2010):-. |
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来源：理论物理研究所
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