Quantum noise radar: Superresolution with quantum antennas by accessing spatiotemporal correlations

I. Peshko, D. Mogilevtsev*, I. Karuseichyk, A. Mikhalychev, A. P. Nizovtsev, G. Y.A. Slepyan, A. Boag

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We suggest overcoming the “Rayleigh catastrophe” and reaching superresolution for imaging with both spatially and temporally correlated field of a superradiant quantum antenna. Considering far-field radiation of two interacting spontaneously emitting two-level systems, we show that for the measurement of the temporally delayed second-order correlation function of the scattered field, the Fisher information does not tend to zero with diminishing the distance between a pair of scatterers even for non-sharp time-averaged detection. For position estimation of more scatterers, the measurement of the time-delayed function is able to provide a considerable accuracy gain over the zero-delayed function. We also show that the superresolution with the considered quantum antenna can be achieved for both near-field imaging and for estimating the antenna parameters.

Original languageEnglish
Pages (from-to)29217-29231
Number of pages15
JournalOptics Express
Volume27
Issue number20
DOIs
StatePublished - 30 Sep 2019

Funding

FundersFunder number
Framework ProgrammePhoG 820365
Belarusian Republican Foundation for Fundamental ResearchF18U-006
Horizon 2020 Framework Programme686731, 820365
National Academy of Sciences of Belarus

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