Unified universal quantum cloning machine and fidelities
文献类型：期刊论文
| 作者 | Wang, YN ; Shi, HD ; Xiong, ZX ; Jing, L ; Ren, XJ ; Mu, LZ ; Fan, H |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2011 |
| 卷号 | 84期号:3 |
| 关键词 | PURE STATES DIMENSION QUBITS |
| ISSN号 | 1050-2947 |
| 通讯作者 | Wang, YN (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China. |
| 中文摘要 | We present a unified universal quantum cloning machine, which combines several different existing universal cloning machines together, including the asymmetric case. In this unified framework, the identical pure states are projected equally into each copy initially constituted by input and one half of the maximally entangled states. We show explicitly that the output states of those universal cloning machines are the same. One importance of this unified cloning machine is that the cloning procession is always the symmetric projection, which reduces dramatically the difficulties for implementation. Also, it is found that this unified cloning machine can be directly modified to the general asymmetric case. Besides the global fidelity and the single-copy fidelity, we also present all possible arbitrary-copy fidelities. |
| 收录类别 | SCI |
| 资助信息 | NSFC [10974247, 11047174]; "973" program [2010CB922904]; NFFTBS [J1030310] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46416]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, YN,Shi, HD,Xiong, ZX,et al. Unified universal quantum cloning machine and fidelities[J]. PHYSICAL REVIEW A,2011,84(3). |
| APA | Wang, YN.,Shi, HD.,Xiong, ZX.,Jing, L.,Ren, XJ.,...&Fan, H.(2011).Unified universal quantum cloning machine and fidelities.PHYSICAL REVIEW A,84(3). |
| MLA | Wang, YN,et al."Unified universal quantum cloning machine and fidelities".PHYSICAL REVIEW A 84.3(2011). |
入库方式： OAI收割
来源：物理研究所
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