Optimal probe states for single-mode quantum target detection in arbitrary object reflectivity
arXiv:2402.05726 · doi:10.1103/PhysRevResearch.6.023084
Abstract
Quantum target detection (QTD) utilizes nonclassical resources to enable radar-like detection for identifying reflecting objects in challenging environments, surpassing classical methods. To fully leverage the quantum advantage in QTD, determining the optimal probe states (OPSs) across various detection parameters and gaining a deeper understanding of their characteristics are crucial. In this study, we identified the single-mode continuous-variable OPSs for arbitrary object reflectivity using optimization algorithms. Our findings suggest that OPSs are non-Gaussian states in most reflectivity scenarios, with exceptions under specific conditions. Furthermore, we provide a comprehensive physical interpretation of the observed phenomena. This study offers a tool for identifying OPSs along with a clear physical interpretation. It also contributes to further advancements towards optimal multi-mode QTD, which has the potential for broad applications in quantum sensing and metrology.
arXiv comment9 pages, 5 figures
References in corpus (26)
- Quantum sensing
- Advances in Quantum Metrology
- Quantifying Coherence
- Advances in Photonic Quantum Sensing
- Quantum Illumination with Gaussian States
- 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
- Entanglement's Benefit Survives an Entanglement-Breaking Channel
- Receiver Operating Characteristics for a Prototype Quantum Two-Mode Squeezing Radar
- Quantum Estimation Methods for Quantum Illumination
- Quantum-enhanced absorption spectroscopy
- Fundamental limits of quantum illumination
- Quantum process tomography with coherent states
- The minimum error probability of quantum illumination
- Is a quantum biosensing revolution approaching?
- Advances in Quantum Radar and Quantum LiDAR
- Optimal probes for continuous variable quantum illumination
- Experimental Quantum Target Detection Approaching the Fundamental Helstrom Limit
- Quantum illumination receiver using double homodyne detection
- Quantum Absorbance Estimation and the Beer-Lambert Law