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| 脉冲激光作用下的量子定位实验方案的设计及分析 | |
| 引用本文： | 李永放,王兆华,李百宏,王蕾,李军,廖桂生. 脉冲激光作用下的量子定位实验方案的设计及分析[J]. 光子学报, 2014, 39(10): 1811-1815. DOI: 10.3788/gzxb20103910.1811 |
| 作者姓名： | 李永放 王兆华 李百宏 王蕾 李军 廖桂生 |
| 作者单位： | （1 陕西师范大学 物理学与信息技术学院,西安 710062) （2 西安电子科技大学 雷达信号处理国家重点实验室,西安 710071) |
| 基金项目： | 国防预研基金（9140A24010607DZ0124）资助 |
| 摘 要： | 基于量子相干和量子空间定位的原理,设计了量子空间定位的实验方案.讨论了在脉冲激光作用下,由第二类自发参量下转换所产生的纠缠光子对的光谱特征、对应的相干函数特点以及对量子定位的影响.结果表明,随着激光脉冲宽度的增加,纠缠光子对的相干性减小,量子定位的测量准确度降低. |
| 关 键 词： | 量子定位 纠缠光子 脉冲激光 相干函数 |
| 收稿时间： | 2009-09-10 |
Experimental Scheme Design and Analysis for the Quantum Spatial Positioning with Pulse Laser |
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| LI Yong-fang,WANG Zhao-hua,LI Bai-hong,WANG Lei,LI Jun,LIAO Gui-sheng. Experimental Scheme Design and Analysis for the Quantum Spatial Positioning with Pulse Laser[J]. Acta Photonica Sinica, 2014, 39(10): 1811-1815. DOI: 10.3788/gzxb20103910.1811 | |
| Authors: | LI Yong-fang WANG Zhao-hua LI Bai-hong WANG Lei LI Jun LIAO Gui-sheng |
| Affiliation: | (1 School of Physics and Information Technology,Shaanxi Normal University, Xi′an 710062,China） (2 National Lab of Radar Signal Processing,Xidian University,Xi′an 710071,China） |
| Abstract: | Based on the principle of quantum coherence and quantum spatial positioning,the experimental scheme of the quantum spatial positioning is designed.The spectrum characteristics of the entanglement photons with spontaneous type-II parametric down-conversion pumped by a broadband frequency pulse laser are discussed.The characteristics of the second-order coherent function and the impact of the phase matching conditions on the quantum spatial positioning are analyzed.It is shown that awith the increase of the pump band-width,the coherence of entangled biphoton is diminished,and the measuring accuracy of the quantum spatial positioning is also reduced. |
| Keywords: | Quantum positioning Entanglement photon Pulse laser Coherence function |
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