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Quantum Radar

Lorenzo Maccone and Changliang Ren
Phys. Rev. Lett. 124, 200503 – Published 21 May 2020; Erratum Phys. Rev. Lett. 131, 159902 (2023)
Physics logo See synopsis: Locating Objects with Quantum Radar
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Abstract

We propose a quantum metrology protocol for the localization of a noncooperative pointlike target in three-dimensional space, by illuminating it with electromagnetic waves. It employs all the spatial degrees of freedom of N entangled photons to achieve an uncertainty in localization that is N times smaller for each spatial direction than what could be achieved by N-independent photons or by classical light of the same average intensity.

  • Figure
  • Received 22 May 2019
  • Accepted 13 April 2020

DOI:https://doi.org/10.1103/PhysRevLett.124.200503

© 2020 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Quantum Information, Science & Technology

Erratum

Erratum: Quantum Radar [Phys. Rev. Lett. 124, 200503 (2020)]

Lorenzo Maccone and Changliang Ren
Phys. Rev. Lett. 131, 159902 (2023)

synopsis

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Locating Objects with Quantum Radar

Published 21 May 2020

An object’s distance and direction could be measured in a new radar scheme that uses entangled photons, something unachievable with previous quantum radar proposals.

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Authors & Affiliations

Lorenzo Maccone1 and Changliang Ren2,*

  • 1Dipartimento di Fisica and INFN Sez. Pavia, University of Pavia, via Bassi 6, I-27100 Pavia, Italy
  • 2Center for Nanofabrication and System Integration, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People’s Republic of China

  • *Corresponding author. renchangliang@cigit.ac.cn

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Issue

Vol. 124, Iss. 20 — 22 May 2020

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