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Quantum violation of noncontextuality for separable states using fewer measurement settings

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Abstract

The state-independent quantum violation of non-contextual realist models has been demonstrated both theoretically and experimentally for any two-qubit state using suitable choices of nine product observables and six different measurement setups. In this paper, for the separable states, a considerable simplification of such a demonstration is achieved by formulating a scheme that requires only five product observables and two different measurement setups.

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Authors and Affiliations

  1. LPTM (CNRS Unité 8089), Université de Cergy-Pontoise, 95302, Cergy-Pontoise Cedex, France

    A. K. Pan

  2. CAPSS, Department of Physics, Bose Institute, Salt Lake, 700091, Kolkata, India

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  1. A. K. Pan
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Correspondence to A. K. Pan.

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Pan, A.K., Home, D. Quantum violation of noncontextuality for separable states using fewer measurement settings. Eur. Phys. J. D 66, 62 (2012). https://doi.org/10.1140/epjd/e2012-20165-y

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  • DOI: https://doi.org/10.1140/epjd/e2012-20165-y

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