Optimal teleportation via thermal entangled states of a two-qubit heisenberg chain
文献类型：期刊论文
| 作者 | Zhou, Yue1; Zhang, Guo-Feng2; Li, Shu-Shen1; Abliz, Ahmad3 |
| 刊名 | Epl
 |
| 出版日期 | 2009-06-01 |
| 卷号 | 86期号:5页码:6 |
| ISSN号 | 0295-5075 |
| DOI | 10.1209/0295-5075/86/50004 |
| 通讯作者 | Zhou, yue() |
| 英文摘要 | We study the optimal teleportation based on bell measurements via the thermal states of a two-qubit heisenberg xxx chain in the presence of the dzyaloshinsky-moriya (dm) anisotropic antisymmetric interaction and obtain an optimal unitary transformation. the explicit expressions of the output state and the teleportation fidelity are presented and compared with those of the standard protocol. it is shown that in this protocol the teleportation fidelity is always larger and the unit fidelity is achieved at zero temperature. the dm interaction can enhance the teleportation fidelity at finite temperatures, as opposed to the effect of the interaction in the standard protocol. cases with other types of anisotropies are also discussed. copyright (c) epla, 2009 |
| WOS关键词 | PROBABILISTIC TELEPORTATION ; QUANTUM TELEPORTATION ; MAGNETIC-FIELD ; ANISOTROPY |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000269357500005 |
| 出版者 | EDP SCIENCES S A |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427646 |
| 专题 | 半导体研究所 |
| 通讯作者 | Zhou, Yue |
| 作者单位 | 1.Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China 2.Beijing Univ Aeronaut & Astronaut, Sch Phys, Beijing 100083, Peoples R China 3.Xinjiang Normal Univ, Sch Math Phys & Informat, Urumqi 830045, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yue,Zhang, Guo-Feng,Li, Shu-Shen,et al. Optimal teleportation via thermal entangled states of a two-qubit heisenberg chain[J]. Epl,2009,86(5):6. |
| APA | Zhou, Yue,Zhang, Guo-Feng,Li, Shu-Shen,&Abliz, Ahmad.(2009).Optimal teleportation via thermal entangled states of a two-qubit heisenberg chain.Epl,86(5),6. |
| MLA | Zhou, Yue,et al."Optimal teleportation via thermal entangled states of a two-qubit heisenberg chain".Epl 86.5(2009):6. |
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来源：半导体研究所
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