Quantum illumination, that is, quantum target detection, is to detect the potential target with two-mode quan- tum entangled state. For a given transmitted energy, the quantum illumination can achieve a target-detecti...Quantum illumination, that is, quantum target detection, is to detect the potential target with two-mode quan- tum 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 useful- ness 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 quan- tum state. Our analysis on the NLA-assisted scheme could help to develop more efficient schemes for quantum illumination.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos U1304613,11204197,11204379 and 11074244the National Basic Research Program of China under Grant No 2011CBA00200the Doctor Science Research Foundation from the Ministry of Education of China under Grant No 20113402110059
文摘Quantum illumination, that is, quantum target detection, is to detect the potential target with two-mode quan- tum 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 useful- ness 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 quan- tum state. Our analysis on the NLA-assisted scheme could help to develop more efficient schemes for quantum illumination.
