• Open Access

Experiment Investigating the Connection between Weak Values and Contextuality

F. Piacentini, A. Avella, M. P. Levi, R. Lussana, F. Villa, A. Tosi, F. Zappa, M. Gramegna, G. Brida, I. P. Degiovanni, and M. Genovese
Phys. Rev. Lett. 116, 180401 – Published 2 May 2016

Abstract

Weak value measurements have recently given rise to a great amount of interest in both the possibility of measurement amplification and the chance for further quantum mechanics foundations investigation. In particular, a question emerged about weak values being proof of the incompatibility between quantum mechanics and noncontextual hidden variables theories (NCHVTs). A test to provide a conclusive answer to this question was given by Pusey [Phys. Rev. Lett. 113, 200401 (2014)], where a theorem was derived showing the NCHVT incompatibility with the observation of anomalous weak values under specific conditions. In this Letter we realize this proposal, clearly pointing out the connection between weak values and the contextual nature of quantum mechanics.

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  • Received 5 February 2016

DOI:https://doi.org/10.1103/PhysRevLett.116.180401

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.

© 2016 American Physical Society

Physics Subject Headings (PhySH)

General PhysicsQuantum Information, Science & Technology

Authors & Affiliations

F. Piacentini1, A. Avella1, M. P. Levi1, R. Lussana2, F. Villa2, A. Tosi2, F. Zappa2, M. Gramegna1, G. Brida1, I. P. Degiovanni1, and M. Genovese1,3

  • 1INRIM, Strada delle Cacce 91, I-10135 Torino, Italy
  • 2Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
  • 3INFN, Via P. Giuria 1, I-10125 Torino, Italy

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Issue

Vol. 116, Iss. 18 — 6 May 2016

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