Improve microwave quantum illumination via optical parametric amplifier

Journal Article · Sun Oct 15 04:00:00 EDT 2017 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2017.08.024· OSTI ID:22701549

Xiong, Biao; Li, Xun; Wang, Xiao-Yu; Zhou, Ling

Quantum illumination is a quantum-optical sensing technique in which an entangled source is exploited to improve the detection of a low-reflectivity object that is immersed in a bright thermal background. Entangled sources between microwave and optical fields can be exploited to improve detection in microwave quantum illumination technique. We proposed a scheme to enhance the entanglement between the output fields of microwave and optical cavity by introducing optical parametric amplifier medium in cavity optomechanical system. We show that improving signal-to-noise ratio and decreasing error probability of detection can be obtained consequently even for objects with low reflectivity in the presence of optical parametric amplifier. - Highlights: • A scheme to improve microwave quantum illumination is proposed. • The improved signal-to-noise ratio and decreased detection-error probability related to the entanglement between microwave mode and optical mode. • The improvement mechanism relies on the enlarged effective optomechanical coupling strength because of the introduced nonlinear medium.

• OSTI ID: 22701549
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Vol. 385; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ILLUMINANCE
MICROWAVE RADIATION
NONLINEAR PROBLEMS
OPTICAL MODES
PARAMETRIC AMPLIFIERS
QUANTUM ENTANGLEMENT
QUANTUM FIELD THEORY
QUANTUM OPTICS
SIGNAL-TO-NOISE RATIO