TY - JOUR

T1 - Quantum illumination with photon-subtracted continuous-variable entanglement

AU - Zhang, Shengli

AU - Guo, Jiansheng

AU - Bao, Wansu

AU - Shi, Jianhong

AU - Jin, Chenhui

AU - Zou, Xubo

AU - Guo, Guangcan

PY - 2014/6/9

Y1 - 2014/6/9

N2 - Quantum illumination is a protocol where quantum resources are utilized to detect a low-reflectivity object embedded in a bright thermal noise bath. For example, quantum illumination with a two-mode squeezed state (TMSS) provides a 6 dB advantage in the error-probability exponent over the optimal classical illumination. We here consider quantum illumination with the photon-subtracted two-mode squeezed state (PSTMSS). Our result is twofold. First, we show that a much smaller error probability Perr could be obtained, meaning that much smaller resources will be required in quantum illumination for a fixed Perr. Second, quantum illumination with PSTMSS appreciably outperforms its classic correspondence in both low- and high-noise operating regimes, extending the regimes in which quantum illumination is optimal for target detection.

AB - Quantum illumination is a protocol where quantum resources are utilized to detect a low-reflectivity object embedded in a bright thermal noise bath. For example, quantum illumination with a two-mode squeezed state (TMSS) provides a 6 dB advantage in the error-probability exponent over the optimal classical illumination. We here consider quantum illumination with the photon-subtracted two-mode squeezed state (PSTMSS). Our result is twofold. First, we show that a much smaller error probability Perr could be obtained, meaning that much smaller resources will be required in quantum illumination for a fixed Perr. Second, quantum illumination with PSTMSS appreciably outperforms its classic correspondence in both low- and high-noise operating regimes, extending the regimes in which quantum illumination is optimal for target detection.

UR - http://www.scopus.com/inward/record.url?scp=84902476081&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.89.062309

DO - 10.1103/PhysRevA.89.062309

M3 - Article

AN - SCOPUS:84902476081

SN - 1050-2947

VL - 89

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 6

M1 - 062309

ER -