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Distance Ranging Based on Quantum Entanglement |
| XIAO Jun-Jun1, FANG Chen3, HAN Xiao-Chun1, ZHAO Jian-Kang2, ZENG Gui-Hua1** |
1State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240
2Shanghai Key Laboratory on Navigation and Location-based Service, Shanghai Jiao Tong University, Shanghai 200240
3Department of Electronics and Information, Northwestern Polytechnical University, Xi'an 710129
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| Cite this article: |
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XIAO Jun-Jun, FANG Chen, HAN Xiao-Chun et al 2013 Chin. Phys. Lett. 30 100301 |
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Abstract In the quantum metrology, applications of quantum techniques based on entanglement bring in some better performances than conventional approaches. We experimentally investigate an application of entanglement in accurate ranging based on the second-order coherence in the time domain. By a fitting algorithm in the data processing, the optimization results show a precision of ±200 μm at a distance of 1043.3 m. In addition, the influence of jamming noise on the ranging scheme is studied. With some different fitting parameters, the result shows that the proposed scheme has a powerful anti-jamming capability for white noise.
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Received: 29 May 2013
Published: 21 November 2013
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| PACS: |
03.65.Ta
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(Foundations of quantum mechanics; measurement theory)
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42.25.Kb
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(Coherence)
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