Entanglement-Based Quantum Radar: From Myth to Reality
| Autor: | Bhashyam Balaji, David Luong, Sreeraman Rajan |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Synthetic aperture radar
020301 aerospace & aeronautics Computer science Quantum noise Aerospace Engineering Array processing 02 engineering and technology Quantum entanglement law.invention Inverse synthetic aperture radar 0203 mechanical engineering Space and Planetary Science law Electronic engineering Quantum radar Clutter Electrical and Electronic Engineering Radar Physics::Atmospheric and Oceanic Physics |
| Zdroj: | IEEE Aerospace and Electronic Systems Magazine. 35:22-35 |
| ISSN: | 1557-959X 0885-8985 |
| DOI: | 10.1109/maes.2020.2970261 |
| Popis: | Many quantum radars currently studied in the literature use a phenomenon called entanglement to address the problem of distinguishing signal from noise, which is one of the most important problems faced by any radar. Until recently, entanglement-based quantum radars at radio frequencies existed only in theory; their practicality was very much in doubt. The situation has changed with a recent experimental implementation of all the necessary components of a quantum two-mode squeezing (QTMS) radar, which operates at microwave frequencies and can be described as a quantum range finder. In this article, we lay out the exact problem solved by this prototype, namely quantum noise, and explain how entanglement can overcome the existence of this noise. By analyzing the QTMS radar prototype, we point out a technological route to an entanglement-based quantum radar that can, in principle, perform all tasks that radars can and must do, such as array processing, clutter suppression, and image processing (including synthetic aperture radar and inverse synthetic aperture radar). |
| Databáze: | OpenAIRE |
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