| Motional Quantum-State Engineering and Implementation of a Quantum Phase-Gate for Multiple Trapped Ions |
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| 作者姓名： | YANG Wen-Xing |
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| 作者单位： | [1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Center for Cold Atom Physics, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China [2]Guaduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | The project partially supported by National Fundamental Research Program of China under Grant No. 2005CB724508 and National Natural Science Foundation of China under Grant Nos. 60478029, 90503010, and 10575040 . We would like to thank Prof. Ying Wu for many enlightening discussions. |
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| 摘 要： |
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| 关 键 词： | 量子态工程学 量子计算 捕获离子 连贯态 |
| 收稿时间： | 2005-11-01 |
| 修稿时间： | 2005-11-01 |
Motional Quantum-State Engineering and Implementation of a Quantum Phase-Gate for Multiple Trapped Ions |
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| YANG Wen-Xing.Motional Quantum-State Engineering and Implementation of a Quantum Phase-Gate for Multiple Trapped Ions[J].Communications in Theoretical Physics,2006,46(2):297-302. |
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| Authors: | YANG;Wen-Xing |
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| Abstract: | We propose a scheme to generate a superposition of motional coherent states with arbitrary coefficients on a line in phase space and implement a quantum controlled phase-gate for multiple trapped ions with a single standing-wave laser pulse whose carrier frequency is tuned to the ions transition. In the scheme each ion does not need to be exactly positioned at the node of the standing wave, which is very important from viewpoint of experiment, Furthermore, our scheme may allow the generation of a superposition of coherent states with large mean phonon number for a large number of trapped ions in a fast way by choosing suitable laser intensity. We show that it can also be used to generate maximally entangled states of multiple trapped ions. |
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| Keywords: | quantum-state engineering quantum computation trapped ions |
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