Realization of Deutsch-like algorithm using ensemble computing
文献类型：期刊论文
| 作者 | Wei, DX; Luo, J; Sun, XP; Zeng, XZ |
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 2003-12-08 |
| 卷号 | 319期号:3-4页码:267-272 |
| 关键词 | Quantum computation Nuclear magnetic resonance |
| 英文摘要 | The Deutsch-like algorithm [Phys. Rev. A. 63 (2001) 034101] distinguishes between even and odd query functions using fewer function calls than its possible classical counterpart in a two-qubit system. But the similar method cannot be applied to a multi-qubit system. We propose a new approach for solving Deutsch-like problem using ensemble computing. The proposed algorithm needs an ancillary qubit and can be easily extended to multi-qubit system with one query. Our ensemble algorithm beginning with a easily-prepared initial state has three main steps. The classifications of the functions can be obtained directly from the spectra of the ancilla qubit. We also demonstrate the new algorithm in a four-qubit molecular system using nuclear magnetic resonance (NMR). One hydrogen and three carbons are selected as the four qubits, and one of carbons is ancilla qubit. We choice two unitary transformations, corresponding to two functions (one odd function and one even function), to validate the ensemble algorithm. The results show that our experiment is successfully and our ensemble algorithm for solving the Deutsch-like problem is virtual. (C) 2003 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | SPIN LIOUVILLE SPACE ; QUANTUM COMPUTATION ; IMPLEMENTATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000186976500008 |
| 公开日期 | 2015-12-08 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8828]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, DX,Luo, J,Sun, XP,et al. Realization of Deutsch-like algorithm using ensemble computing[J]. PHYSICS LETTERS A,2003,319(3-4):267-272. |
| APA | Wei, DX,Luo, J,Sun, XP,&Zeng, XZ.(2003).Realization of Deutsch-like algorithm using ensemble computing.PHYSICS LETTERS A,319(3-4),267-272. |
| MLA | Wei, DX,et al."Realization of Deutsch-like algorithm using ensemble computing".PHYSICS LETTERS A 319.3-4(2003):267-272. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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。