Quantum advantage in postselected metrology

In quantum metrology (as well as computing) it is not easy to pinpoint the specific source of quantum advantage. Here, the authors reveal a link between postselection and the unusually high rates of information per final measurement in general quantum parameter-estimation scenarios.

Bibliographic Details
Main Authors:	David R. M. Arvidsson-Shukur, Nicole Yunger Halpern, Hugo V. Lepage, Aleksander A. Lasek, Crispin H. W. Barnes, Seth Lloyd
Format:	Article
Language:	English
Published:	Nature Publishing Group 2020-07-01
Series:	Nature Communications
Online Access:	https://doi.org/10.1038/s41467-020-17559-w

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spelling	doaj-ba5f29d271834adeb475aeace53c602b2021-08-01T11:40:20ZengNature Publishing GroupNature Communications2041-17232020-07-011111710.1038/s41467-020-17559-wQuantum advantage in postselected metrologyDavid R. M. Arvidsson-Shukur0Nicole Yunger Halpern1Hugo V. Lepage2Aleksander A. Lasek3Crispin H. W. Barnes4Seth Lloyd5Cavendish Laboratory, Department of Physics, University of CambridgeResearch Laboratory of Electronics, Massachusetts Institute of TechnologyCavendish Laboratory, Department of Physics, University of CambridgeCavendish Laboratory, Department of Physics, University of CambridgeCavendish Laboratory, Department of Physics, University of CambridgeDepartment of Mechanical Engineering, Massachusetts Institute of TechnologyIn quantum metrology (as well as computing) it is not easy to pinpoint the specific source of quantum advantage. Here, the authors reveal a link between postselection and the unusually high rates of information per final measurement in general quantum parameter-estimation scenarios.https://doi.org/10.1038/s41467-020-17559-w
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	David R. M. Arvidsson-Shukur Nicole Yunger Halpern Hugo V. Lepage Aleksander A. Lasek Crispin H. W. Barnes Seth Lloyd
spellingShingle	David R. M. Arvidsson-Shukur Nicole Yunger Halpern Hugo V. Lepage Aleksander A. Lasek Crispin H. W. Barnes Seth Lloyd Quantum advantage in postselected metrology Nature Communications
author_facet	David R. M. Arvidsson-Shukur Nicole Yunger Halpern Hugo V. Lepage Aleksander A. Lasek Crispin H. W. Barnes Seth Lloyd
author_sort	David R. M. Arvidsson-Shukur
title	Quantum advantage in postselected metrology
title_short	Quantum advantage in postselected metrology
title_full	Quantum advantage in postselected metrology
title_fullStr	Quantum advantage in postselected metrology
title_full_unstemmed	Quantum advantage in postselected metrology
title_sort	quantum advantage in postselected metrology
publisher	Nature Publishing Group
series	Nature Communications
issn	2041-1723
publishDate	2020-07-01
description	In quantum metrology (as well as computing) it is not easy to pinpoint the specific source of quantum advantage. Here, the authors reveal a link between postselection and the unusually high rates of information per final measurement in general quantum parameter-estimation scenarios.
url	https://doi.org/10.1038/s41467-020-17559-w
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Quantum advantage in postselected metrology

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