Chin. Phys. Lett.  2015, Vol. 32 Issue (09): 090301    DOI: 10.1088/0256-307X/32/9/090301
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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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.
Received: 27 March 2015      Published: 02 October 2015
PACS:  03.67.Bg (Entanglement production and manipulation)  
  42.50.Ex (Optical implementations of quantum information processing and transfer)  
  03.67.Hk (Quantum communication)  
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ZHANG Sheng-Li, WANG-Kun, GUO Jian-Sheng et al  2015 Chin. Phys. Lett. 32 090301
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ZHANG Sheng-Li
GUO Jian-Sheng
SHI Jian-Hong
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