Microwave Quantum Illumination with Correlation-To-Displacement Conversion
Year: 2023
Authors: Angeletti J., Shi HW., Lakshmanan T., Vitali D., Zhuang QT.
Autors Affiliation: Univ Camerino, Sch Sci & Technol, Phys Div, I-62032 Camerino, MC, Italy; Univ Naples Federico II, Dept Phys, I-80126 Naples, Italy; Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy; Univ Southern Calif, Ming Hsieh Dept Elect & Comp Engn, Los Angeles, CA 90089 USA; CNR INO, I-50125 Florence, Italy; Univ Southern Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA.
Abstract: Entanglement is vulnerable to degradation in a noisy sensing scenario, but surprisingly, the quantum illumination protocol has demonstrated that its advantage can survive. However, designing a measurement system that realizes this advantage is challenging since the information is hidden in the weak correlation embedded in the noise at the receiver side. Recent progress in a correlation-to-displacement conversion module provides a route towards an optimal protocol for practical microwave quantum illumination. In this work, we extend the conversion module to accommodate experimental imperfections that are ubiquitous in microwave systems. To mitigate loss, we propose amplification of the return signals. In the case of ideal amplification, the entire six-decibel error-exponent advantage in target detection error can be maintained. However, in the case of noisy amplification, this advantage is reduced to three decibels. We analyze the quantum advantage under different scenarios with a Kennedy receiver in the final measurement. In the ideal case, the performance still achieves the optimal one over a fairly large range of error probability with only on-off detection. Empowered by photon-number-resolving detectors, the performance is further improved and also analyzed in terms of receiver operating characteristic curves. Our findings pave the way for the development of practical microwave quantum illumination systems.
Journal/Review: PHYSICAL REVIEW APPLIED
Volume: 20 (2) Pages from: 24030-1 to: 24030-15
More Information: J.A., T.L., and D.V. acknowledge the support of PNRR MUR project PE0000023-NQSTI (Italy) , and of the European Union Horizon 2020 Programme for Researchand Innovation through the Project No. 862644 FET-Open QUARTET. H.S. and Q.Z. acknowledge the support of National Science Foundation (NSF) CAREER Award CCF-21428 82, Office of Naval Research Grant No. N000142312296, NSF Engineering Research Center for Quantum Networks Grant No. 1941583, and Cisco Systems, Inc.. J.A. also acknowledges support from University of Southern California (USC) and Cisco Systems, Inc. during his visit to USC.KeyWords: Criterion; Coherent; StatesDOI: 10.1103/PhysRevApplied.20.024030ImpactFactor: 3.800Citations: 1data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-09-15References taken from IsiWeb of Knowledge: (subscribers only)
