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Quantum Illumination with Noiseless Linear Amplifier |
| ZHANG Sheng-Li, WANG-Kun**, GUO Jian-Sheng, SHI Jian-Hong |
The PLA Information Engineering University, Zhengzhou 450004
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| Cite this article: |
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ZHANG Sheng-Li, WANG-Kun, GUO Jian-Sheng et al 2015 Chin. Phys. Lett. 32 090301 |
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Abstract Quantum illumination, that is, quantum target detection, is to detect the potential target with two-mode quantum entangled state. For a given transmitted energy, the quantum illumination can achieve a target-detection probability of error much lower than the illumination scheme without entanglement. We investigate the usefulness of noiseless linear amplification (NLA) for quantum illumination. Our result shows that NLA can help to substantially reduce the number of quantum entangled states collected for joint measurement of multi-copy quantum state. Our analysis on the NLA-assisted scheme could help to develop more efficient schemes for quantum illumination.
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Received: 27 March 2015
Published: 02 October 2015
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| PACS: |
03.67.Bg
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(Entanglement production and manipulation)
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42.50.Ex
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(Optical implementations of quantum information processing and transfer)
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03.67.Hk
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(Quantum communication)
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