Improved implementation of the Alicki–Van Ryn nonclassicality test for a single particle using Si detectors

Giorgio Brida, Ivo Pietro Degiovanni, Marco Genovese, Fabrizio Piacentini, Valentina Schettini, Nicolas Gisin, Sergey V. Polyakov, and Alan Migdall
Phys. Rev. A 79, 044102 – Published 15 April 2009

Abstract

Recently a test of nonclassicality for a single qubit was proposed [R. Alicki and N. Van Ryn, J. Phys, A: Math. Theor. 41, 062001 (2008)]. We present an optimized experimental realization of this test leading to a 46 standard deviation violation of classicality. This factor-of-5 improvement over our previous result was achieved by moving from the infrared to the visible where we can take advantage of higher-efficiency and lower-noise photon detectors.

  • Figure
  • Received 26 November 2008

DOI:https://doi.org/10.1103/PhysRevA.79.044102

©2009 American Physical Society

Authors & Affiliations

Giorgio Brida1, Ivo Pietro Degiovanni1,*, Marco Genovese1, Fabrizio Piacentini1, Valentina Schettini1, Nicolas Gisin2, Sergey V. Polyakov3, and Alan Migdall3

  • 1Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, Italy
  • 2Group of Applied Physics, University of Geneva, CH-1211 Geneva 4, Switzerland
  • 3Optical Technology Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8441, USA and Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, USA

  • *Corresponding author; i.degiovanni@inrim.it

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Vol. 79, Iss. 4 — April 2009

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