• Open Access

Beating the Rayleigh Limit Using Two-Photon Interference

Michał Parniak, Sebastian Borówka, Kajetan Boroszko, Wojciech Wasilewski, Konrad Banaszek, and Rafał Demkowicz-Dobrzański
Phys. Rev. Lett. 121, 250503 – Published 18 December 2018
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Abstract

Multiparameter estimation theory offers a general framework to explore imaging techniques beyond the Rayleigh limit. While optimal measurements of single parameters characterizing a composite light source are now well understood, simultaneous determination of multiple parameters poses a much greater challenge that in general requires implementation of collective measurements. Here we show, theoretically and experimentally, that Hong-Ou-Mandel interference followed by spatially resolved detection of photons provides precise information on both the separation and the centroid for a pair of point emitters, avoiding trade-offs inherent to single-photon measurements.

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  • Received 7 August 2018
  • Revised 3 October 2018

DOI:https://doi.org/10.1103/PhysRevLett.121.250503

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Michał Parniak1,2,*, Sebastian Borówka1, Kajetan Boroszko1, Wojciech Wasilewski1,2, Konrad Banaszek1,2, and Rafał Demkowicz-Dobrzański1

  • 1Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
  • 2Centre for Quantum Optical Technologies, Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland

  • *michal.parniak@fuw.edu.pl

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Issue

Vol. 121, Iss. 25 — 21 December 2018

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