| One-step discrimination scheme on N-particle Greenberger-Horne-Zeilinger bases |
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| 作者姓名： | 汪新文 刘翔 方卯发 |
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| 作者单位： | Department of Electronic Engineering and
Physics, Hunan University of \\Science and Engineering, Yongzhou
425100, China;College of Physics and Information Science,
Hunan Normal University, Changsha 410081, China;College of Physics and Information Science,
Hunan Normal University, Changsha 410081, China |
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| 基金项目： | Project supported by the Scientific
Research Fund of Hunan Provincial Education Department, China (Grant
No 06C354), the Natural Science Foundation of Hunan Province, China
(Grant No 06JJ50015) and the fund from Hunan University of Science
and Engineering |
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| 摘 要： | We present an experimentally feasible one-step discrimination scheme on Bell bases with trapped ions, and then generalize it to the case of N-ion Greenberger-Horne-Zeilinger （GHZ） bases. In the scheme, all the orthogonal and complete N-ion GHZ internal states can be exactly discriminated only by one step, and thus it takes very short time. Moreover, the scheme is insensitive to thermal motion and dose not require the individual addressing of the ions. The Bell-state and GHZ-state one-step discrimination scheme can be widely used in quantum information processing based on ion-trap set-up.
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| 关 键 词： | GHZ态分析仪 N-粒子 一步鉴别方案 俘获离子 量子信息处理 |
| 收稿时间： | 8/8/2006 12:00:00 AM |
| 修稿时间： | 2006-08-082006-10-01 |
One-step discrimination scheme on N-particle Greenberger--Horne--Zeilinger bases |
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| Wang Xin-Wen,Liu Xiang and Fang Mao-Fa.One-step discrimination scheme on N-particle Greenberger-Horne-Zeilinger bases[J].Chinese Physics B,2007,16(5):1215-1219. |
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| Authors: | Wang Xin-Wen Liu Xiang and Fang Mao-Fa |
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| Institution: | a. Department of Electronic Engineering and Physics, Hunan University of Science and Engineering, Yongzhou 425100, China; b. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China |
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| Abstract: | We present an experimentally feasible one-step discrimination scheme
on Bell bases with trapped ions, and then generalize it to the case
of N-ion Greenberger--Horne--Zeilinger (GHZ) bases. In the scheme,
all the orthogonal and complete N-ion GHZ internal states can be
exactly discriminated only by one step, and thus it takes very short
time. Moreover, the scheme is insensitive to thermal motion and dose
not require the individual addressing of the ions. The Bell-state
and GHZ-state one-step discrimination scheme can be widely used in
quantum information processing based on ion-trap set-up. |
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| Keywords: | Bell-state analyser GHZ-state
analyser trapped ions quantum information processing |
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