Quantum dissonance is rejected in an overlap measurement scheme
文献类型：期刊论文
| 作者 | Yu, CS ; Zhang, J ; Fan, H |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2012 |
| 卷号 | 86期号:5 |
| 关键词 | ENTANGLEMENT DECOHERENCE INFORMATION |
| ISSN号 | 1050-2947 |
| 通讯作者 | Yu, CS (reprint author), Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China. |
| 中文摘要 | The overlap measurement scheme accomplishes the evaluation of the overlap of two input quantum states by only measuring an introduced auxiliary qubit, irrespective of the complexity of the two input states. We find a counterintuitive phenomenon that no quantum dissonance can be found in the process of overlap measurement scheme, even though the auxiliary qubit might be entangled, classically correlated, or even uncorrelated with the two input states based on different types of input states. In principle, this provides an opposite but supplementary example to the remarkable algorithm of the deterministic quantum computation with one qubit in which no entanglement is present but quantum dissonance is necessary. Finally, we consider a simple overlap measurement model to demonstrate the continuous change (including potential sudden death of quantum discord) of the input states from entangled to product states by only adjusting some initial parameters. |
| 收录类别 | SCI |
| 资助信息 | NSFC [11175033]; '973' program [2010CB922904]; Fundamental Research Funds of the Central Universities [DUT12LK42] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51664]  |
| 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 | Yu, CS,Zhang, J,Fan, H. Quantum dissonance is rejected in an overlap measurement scheme[J]. PHYSICAL REVIEW A,2012,86(5). |
| APA | Yu, CS,Zhang, J,&Fan, H.(2012).Quantum dissonance is rejected in an overlap measurement scheme.PHYSICAL REVIEW A,86(5). |
| MLA | Yu, CS,et al."Quantum dissonance is rejected in an overlap measurement scheme".PHYSICAL REVIEW A 86.5(2012). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。