Phase estimation algorithm for the multibeam optical metrology

Autor: M. R. Perelshtein, O. V. Misochko, N. S. Kirsanov, Danylo Lykov, M. V. Lebedev, Valerii M. Vinokur, Gordey B. Lesovik, V. V. Zemlyanov
Přispěvatelé: Moscow Institute of Physics and Technology, Quantum Circuits and Correlations, Department of Applied Physics, University of Chicago, Aalto-yliopisto, Aalto University
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
Scientific Reports
ISSN: 2045-2322
Popis: Unitary Fourier transform lies at the core of the multitudinous computational and metrological algorithms. Here we show experimentally how the unitary Fourier transform-based phase estimation protocol, used namely in quantum metrology, can be translated into the classical linear optical framework. The developed setup made of beam splitters, mirrors and phase shifters demonstrates how the classical coherence, similarly to the quantum coherence, poses a resource for obtaining information about the measurable physical quantities. Our study opens route to the reliable implementation of the small-scale unitary algorithms on path-encoded qudits, thus establishing an easily accessible platform for unitary computation.
Comment: 17 pages (main text: 9 pages, supplement: 8 pages), 7 figures (main text: 5 figures, supplement: 2 figures)
Databáze: OpenAIRE
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