Barzanjeh, Shabir, Pirandola, Stefano orcid.org/0000-0001-6165-5615, Vitali, David et al. (1 more author) (2020) Microwave quantum illumination with a digital phase-conjugated receiver. In: 2020 IEEE Radar Conference (RadarConf20), 21-25 Sep 2020.
Abstract
Quantum illumination is a sensing technique that employs entangled signal-idler beams to improve the detection efficiency of low-reflectivity objects in environments with large thermal noise. The advantage over classical strategies is evident at low signal brightness, a feature which could make the protocol an ideal prototype for non-invasive scanning or low-power shortrange radar. Here we experimentally investigate the concept of quantum illumination at microwave frequencies, by generating entangled fields using a Josephson parametric converter which are then amplified to illuminate a room-temperature object at a distance of 1 meter. Starting from experimental data, we simulate the case of perfect idler photon number detection, which results in a quantum advantage compared to the relative classical benchmark. Our results highlight the opportunities and challenges on the way towards a first room-temperature application of microwave quantum circuits.
Metadata
Item Type: | Conference or Workshop Item |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Computer Science (York) |
Depositing User: | Pure (York) |
Date Deposited: | 20 Sep 2021 15:10 |
Last Modified: | 16 Oct 2024 20:41 |
Published Version: | https://doi.org/10.1109/radarconf2043947.2020.9266... |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1109/radarconf2043947.2020.9266397 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:178286 |
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Filename: Microwave_quantum_Vitali.pdf
Description: Microwave Experiment Proceeding