Fetching marked items from an unsorted database in NMR ensemble computing
文献类型：期刊论文
| 作者 | Xiao, L; Long, GL; Long, GL , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2002 |
| 卷号 | 66期号:5页码:- |
| 关键词 | Spin Liouville Space Quantum Computation Algorithm |
| ISSN号 | 1050-2947 |
| 英文摘要 | The speedup of an unsorted database search has always been a challenging problem not only in classical computation but also in quantum computation. We propose a fetching algorithm for a Liouville space nuclear magnetic resonance (NMR) ensemble computing to fetch a marked item from an unsorted database directly. This algorithm achieves the absolute optimum in an unsorted database search problem: a single query. In fact, this algorithm also works well for fetching several unknown numbers of marked items. The computer simulation realization of the algorithm in a three-qubit homonuclear spin system is also presented. In addition, a compromised version of the algorithm, which reduces the demand on the structure of the molecules for the NMR experiment, is also devised. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000179631900043 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13405]  |
| 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 | Long, GL , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Xiao, L,Long, GL,Long, GL , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.. Fetching marked items from an unsorted database in NMR ensemble computing[J]. PHYSICAL REVIEW A,2002,66(5):-. |
| APA | Xiao, L,Long, GL,&Long, GL , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China..(2002).Fetching marked items from an unsorted database in NMR ensemble computing.PHYSICAL REVIEW A,66(5),-. |
| MLA | Xiao, L,et al."Fetching marked items from an unsorted database in NMR ensemble computing".PHYSICAL REVIEW A 66.5(2002):-. |
入库方式： OAI收割
来源：理论物理研究所
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