A comparison between quantum and classical noise radar sources
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A4 Artikkeli konferenssijulkaisussa
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2020-09-21
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
2020 IEEE Radar Conference, RadarConf 2020, IEEE Radar Conference, Volume 2020-September
Abstract
We compare the performance of a quantum radar based on two-mode squeezed states with a classical radar system based on correlated thermal noise. With a constraint of equal number of photons NS transmitted to probe the environment, we find that the quantum setup exhibits an advantage with respect to its classical counterpart of √2 in the cross-mode correlations. Amplification of the signal and the idler is considered at different stages of the protocol, showing that no quantum advantage is achievable when a large-enough gain is applied, even when quantum-limited amplifiers are available. We also characterize the minimal type-II error probability decay, given a constraint on the type-I error probability, and find that the optimal decay rate of the type-II error probability in the quantum setup is ln(1 + 1/N S) larger than the optimal classical setup, in the NS« 1 regime. In addition, we consider the Receiver Operating Characteristic (ROC) curves for the scenario when the idler and the received signal are measured separately, showing that no quantum advantage is present in this case. Our work characterizes the trade-off between quantum correlations and noise in quantum radar systems.Description
Keywords
Other note
Citation
Jonsson, R, Di Candia, R, Ankel, M, Strom, A & Johansson, G 2020, A comparison between quantum and classical noise radar sources . in 2020 IEEE Radar Conference, RadarConf 2020 ., 9266597, IEEE Radar Conference, vol. 2020-September, IEEE, IEEE Radar Conference, Florence, Italy, 21/09/2020 . https://doi.org/10.1109/RadarConf2043947.2020.9266597