Quantum illumination receiver using double homodyne detection

Abstract

A quantum receiver is an essential element of quantum illumination (QI) which outperforms its classical counterpart, called classical-illumination (CI). However, there are only few proposals for realizable quantum receiver, which exploits nonlinear effects leading to increasing the complexity of receiver setups. To compensate this, in this article, we design a quantum receiver with linear optical elements for Gaussian QI. Rather than exploiting nonlinear effect, our receiver consists of a 50:50 beam splitter and homodyne detection. Using double homodyne detection after the 50:50 beam splitter, we analyze the performance of the QI in different regimes of target reflectivity, source power, and noise level. We show that our receiver has better signal-to-noise ratio and more robust against noise than the existing simple-structured receivers.

arXiv comment9 pages, 6 figures

References in corpus (28)

• Quantum Illumination with Gaussian States
• The Quantum Chernoff Bound
• Microwave Quantum Illumination
• Quantum Illumination at the Microwave Wavelengths
• Experimental realisation of quantum illumination
• Entanglement-Enhanced Sensing in a Lossy and Noisy Environment
• Gaussian-state quantum-illumination receivers for target detection
• Microwave quantum illumination using a digital receiver
• Optimum mixed-state discrimination for noisy entanglement-enhanced sensing
• Quantum-Enhanced Noise Radar
• Quantum illumination versus coherent-state target detection
• Computable bounds for the discrimination of Gaussian states
• The quantum Chernoff bound as a measure of distinguishability between density matrices: application to qubit and Gaussian states
• Quantum-enhanced standoff detection using correlated photon pairs
• Quantum Estimation Methods for Quantum Illumination
• Fundamental limits to quantum channel discrimination
• Gaussian hypothesis testing and quantum illumination
• Fundamental limits of quantum illumination
• How Discord underlies the Noise Resilience of Quantum Illumination
• Multidimensional quantum-enhanced target detection via spectro-temporal correlation measurements
• The minimum error probability of quantum illumination
• Quantum Illumination with a generic Gaussian source
• Quantum target detection using entangled photons
• Quantifying the source of enhancement in experimental continuous variable quantum illumination
• Overarching framework between Gaussian quantum discord and Gaussian quantum illumination
• Experimental investigation of linear-optics-based quantum target detection
• Noisy receivers for quantum illumination
• The maximum advantage of quantum illumination

Cited by in corpus (14)

• Experimental Quantum Target Detection Approaching the Fundamental Helstrom Limit
• Gaussian quantum estimation of the lossy parameter in a thermal environment
• Supersensitivity of Kerr phase estimation with two-mode squeezed vacuum states
• Observable bound for Gaussian illumination
• Heralded single-pixel imaging with high loss-resistance and noise-robustness
• Quantum limits of covert target detection
• Bound for Gaussian-state Quantum illumination using direct photon measurement
• Noise-robust single-pixel imaging in photon counting regime with a pulsed source
• Quantum illumination with noisy probes: Conditional advantages of non-Gaussianity
• Gaussian Quantum Illumination via Monotone Metrics
• Not even 6 dB: Gaussian quantum illumination in thermal background
• Relation between quantum illumination and quantum parameter estimation
• Optimal probe states for single-mode quantum target detection in arbitrary object reflectivity
• Quantum target ranging with Hetero-Homodyne detection