Optimal squeezing for quantum target detection

Gaetana Spedalieri; Stefano Pirandola

doi:10.1103/PhysRevResearch.3.L042039

Optimal squeezing for quantum target detection

Gaetana Spedalieri, Stefano Pirandola

Computer Science

Research output: Contribution to journal › Article › peer-review

Abstract

It is not clear if the performance of a quantum lidar or radar, without an idler and only using Gaussian resources, could exceed the performance of a semiclassical setup based on coherent states and homodyne detection. Here we prove this is indeed the case by showing that an idler-free squeezed-based setup can beat this semiclassical benchmark. More generally, we show that probes whose displacement and squeezing are jointly optimized can strictly outperform coherent states with the same mean number of input photons for both the problems of quantum illumination and reading.

Original language	English
Article number	L042039
Journal	Physical Review Research
Volume	3
DOIs	https://doi.org/10.1103/PhysRevResearch.3.L042039
Publication status	Published - 10 Dec 2021

Bibliographical note

© 2021. American Physical Society.

Revised version

Keywords

quant-ph
physics.optics

Access to Document

10.1103/PhysRevResearch.3.L042039Licence: CC BY

PhysRevResearch.3.L042039
© 2021. American Physical Society.
Final published version, 261 KBLicence: CC BY

Cite this

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