| 基于核磁共振的子空间量子过程重构 |
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| 引用本文： | 姚淅伟,曾碧榕,刘钦,牟晓阳,林星程,杨春,潘健,陈忠.基于核磁共振的子空间量子过程重构[J].海洋学报,2010,32(10):6837-6841. |
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| 作者姓名： | 姚淅伟 曾碧榕 刘钦 牟晓阳 林星程 杨春 潘健 陈忠 |
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| 作者单位： | 厦门大学物理系,福建省等离子与磁共振研究重点实验室,厦门 361005;厦门大学材料科学与工程系,厦门 361005;厦门大学物理系,福建省等离子与磁共振研究重点实验室,厦门 361005;厦门大学物理系,福建省等离子与磁共振研究重点实验室,厦门 361005;厦门大学物理系,福建省等离子与磁共振研究重点实验室,厦门 361005;厦门大学物理系,福建省等离子与磁共振研究重点实验室,厦门 361005;厦门大学物理系,福建省等离子与磁共振研究重点实验室,厦门 361005;厦门大学物理系,福建省等离子与磁共振研究重点实验室,厦门 361005 |
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| 基金项目： | 福建省自然科学基金(批准号:2008J0219)资助的课题. |
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| 摘 要： | 基于三核自旋量子系统实现了内嵌两量子位子空间量子过程重构.通过输入完备态集合对执行的量子过程进行了表征.由于量子过程内嵌于子空间,使得重构实验所需输入次数及时间显著减少,同时实验尽量避免使用时间较长的J偶合演化,有效控制了系统的退相干.
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| 关 键 词： | 量子计算 核磁共振 过程重构 子空间 |
Subspace quantum process tomography via nuclear magnetic resonance |
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| Yao Xi-Wei,Zeng Bi-Rong,Liu Qin,Mu Xiao-Yang,Lin Xing-Cheng,Yang Chun,Pan Jian and Chen Zhong.Subspace quantum process tomography via nuclear magnetic resonance[J].Acta Oceanologica Sinica (in Chinese),2010,32(10):6837-6841. |
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| Authors: | Yao Xi-Wei Zeng Bi-Rong Liu Qin Mu Xiao-Yang Lin Xing-Cheng Yang Chun Pan Jian and Chen Zhong |
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| Institution: | Department of Physics, Fujian Provincal Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China;Department of Materials Science and Engineering, Xiamen University, Xiamen 361005, China;Department of Physics, Fujian Provincal Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China;Department of Physics, Fujian Provincal Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China;Department of Physics, Fujian Provincal Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China;Department of Physics, Fujian Provincal Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China;Department of Physics, Fujian Provincal Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China;Department of Physics, Fujian Provincal Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China |
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| Abstract: | Experimental investigation of subspace quantum process tomography in three-spin system was implemented via nuclear magnetic resonance. A quantum process was characterized by measuring a complete set of input states and corresponding outputs. The method using ancillary qubit remarkably reduces the number of the initial input states. And the pulse sequences used in this paper have fewer J-coupling evolutions. The experiment time was shortened and quantum decoherence of the system was weakened efficiently. |
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| Keywords: | quantum computation nuclear magnetic resonance process tomography subspace |
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