Distilling perfect GHZ states from two copies of non-GHZ-diagonal mixed states
文献类型：期刊论文
| 作者 | Tang, SQ; Zhang, DY; Wang, XW (reprint author), Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China.; Yuan, JB; Wang, XW |
| 刊名 | OPTICS COMMUNICATIONS
 |
| 出版日期 | 2017 |
| 卷号 | 392页码:185-189 |
| 关键词 | Entanglement Purification Non-ghz-diagonal States Non-asymptotic Way Perfect Output States |
| DOI | http://dx.doi.org/10.1016/j.optcom.2016.12.002 |
| 英文摘要 | It has been shown that a nearly pure Greenberger-Horne-Zeilinger (GHZ) state could be distilled from a large (even infinite) number of GHZ-diagonal states that can be obtained by depolarizing general multipartite mixed states (non-GHZ-diagonal states) through sequences of (probabilistic) local operations and classical communications. We here demonstrate that perfect GHZ states can be extracted, with certain probabilities, from two copies of non-GHZ-diagonal mixed states when some conditions are satisfied. This result implies that it is not necessary to depolarize these entangled mixed states to the GHZ-diagonal type, and that they are better than GHZ-diagonal states for distillation of pure GHZ states. We find a wide class of multipartite entangled mixed states that fulfill the requirements. Moreover, we display that the obtained result can be applied to practical noisy environments, e.g., amplitude-damping channels. Our findings provide an important complementarity to conventional GHZ-state distillation protocols (designed for GHZ-diagonal states) in theory, as well as having practical applications. |
| 学科主题 | Optics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22051]  |
| 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, XW (reprint author), Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Tang, SQ,Zhang, DY,Wang, XW ,et al. Distilling perfect GHZ states from two copies of non-GHZ-diagonal mixed states[J]. OPTICS COMMUNICATIONS,2017,392:185-189. |
| APA | Tang, SQ,Zhang, DY,Wang, XW ,Yuan, JB,&Wang, XW.(2017).Distilling perfect GHZ states from two copies of non-GHZ-diagonal mixed states.OPTICS COMMUNICATIONS,392,185-189. |
| MLA | Tang, SQ,et al."Distilling perfect GHZ states from two copies of non-GHZ-diagonal mixed states".OPTICS COMMUNICATIONS 392(2017):185-189. |
入库方式： OAI收割
来源：理论物理研究所
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