Quantum-enhanced noise radar
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TLDR
In this article, a two-mode squeezed state, which exhibits continuous-variable entanglement between so-called signal and idler beams, is used as input to the radar system.Abstract:
We propose a protocol for quantum illumination: a quantum-enhanced noise radar. A two-mode squeezed state, which exhibits continuous-variable entanglement between so-called signal and idler beams, is used as input to the radar system. Compared to existing proposals for quantum illumination, our protocol does not require joint measurement of the signal and idler beams. This greatly enhances the practicality of the system by, for instance, eliminating the need for a quantum memory to store the idler. We perform a proof-of-principle experiment in the microwave regime, directly comparing the performance of a two-mode squeezed source to an ideal classical noise source that saturates the classical bound for correlation. We find that, even in the presence of significant added noise and loss, the quantum source outperforms the classical source by as much as an order of magnitude.read more
Citations
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Design and simulation of engineered Josephson parametric amplifier in quantum two-mode squeezed radar
TL;DR: In this paper , the authors apply quantum theory to a research domain focusing on the simulation of QTMS radar and simulate a proposal of using engineered JPA (EJPA) to enhance the performance of a two-mode squeezed radar.
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Comparison of SNR gain between quantum illumination radar and classical radar.
TL;DR: The physical fundamental of matched filter (MF), which can achieve the optimal SNR gain under white noise in classical radar theory, and phase conjugation (PC) receiver are compared and it is shown that QI radar with practical receivers can achieve about 3dB quantum advantage inSNR gain.
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Quantum Technology for Military Applications.
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One-shot detection limits of time-alignment two-photon illumination radar
TL;DR: In this article , a new optical probe source is proposed in which two photons aligned in time by using Hong-Ou-Mandel (HOM) interferometer is used.
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Optimal squeezing for quantum target detection.
TL;DR: In this paper, the authors show that an idler-free squeezed-based setup can outperform coherent states with the same mean number of input photons for both the problems of quantum illumination and reading.
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