| 远距离量子通信实验中的高维纠缠源 |
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| 引用本文： | 印娟,钱勇,李晓强,包小辉,彭承志,杨涛,潘阁生.远距离量子通信实验中的高维纠缠源[J].物理学报,2011,60(6):60308-060308. |
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| 作者姓名： | 印娟 钱勇 李晓强 包小辉 彭承志 杨涛 潘阁生 |
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| 作者单位： | 中国科学技术大学近代物理系,合肥微尺度物质科学国家实验室,合肥 230026 |
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| 摘 要： | 设计了适用于远距离量子通信实验的高维纠缠源.利用连续激光器抽运产生了极化-时间两体四维纠缠光子对,在抽运功率20 mW下测到每秒700对符合,保真度为89%±3%.相比已有的高维纠缠源,在本文中发展的源具有传输便利、相位稳定性好等优点,适用于未来远距离高维量子通信实验和量子力学基本问题实验检验,如远距离高维量子密码实验、两粒子Greenberger-Horne-Zeilinger定理检验、两粒子量子赝"心灵感应"(quantum pseudo telepathy)实验演示等.
关键词：
高维纠缠
极化纠缠
时间箱纠缠
量子通信
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| 关 键 词： | 高维纠缠 极化纠缠 时间箱纠缠 量子通信 |
| 收稿时间： | 5/4/2011 12:00:00 AM |
| 修稿时间： | 5/6/2011 12:00:00 AM |
High-dimensional entanglement for long distance quantum communication |
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| Yin Juan,Qian Yong,Li Xiao-Qiang,Bao Xiao-Hui,Peng Cheng-Zhi,Yang Tao,Pan Ge-Sheng.High-dimensional entanglement for long distance quantum communication[J].Acta Physica Sinica,2011,60(6):60308-060308. |
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| Authors: | Yin Juan Qian Yong Li Xiao-Qiang Bao Xiao-Hui Peng Cheng-Zhi Yang Tao Pan Ge-Sheng |
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| Institution: | Hefei National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | In this paper, we provide a scheme to generate a high-dimensional entanglement source for long distance quantum communication. We utilize a continuous wave pump laser to produce polarization-time two-body four-dimensional entangled photon pairs. Under 20 mW of pump power, we achieve 700 entangled photon pairs per second with a fidelity of 89%±3%. Compared with other known high dimension entangled sources, the developed source in the paper is easy to transmit over a long distance and its phase stability is easy to achieve. Therefore, the source is more suited for the future long distance high-dimensional quantum communication tasks and testing the quantum nonlocality, for example, long distance high dimensional quantum key distribution, experimental testing two-particle Greenberger-Horne-Zeilinger theorem, implementation of two-particle quantum pseudo telepathy, etc. |
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| Keywords: | high-dimensional entanglement polarization entanglement time-bin entanglement quantum communication |
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