Bell operator and Gaussian squeezed states in noncommutative quantum mechanics

Catarina Bastos, Alex E. Bernardini, Orfeu Bertolami, Nuno Costa Dias, and João Nuno Prata
Phys. Rev. D 93, 104055 – Published 26 May 2016

Abstract

We examine putative corrections to the Bell operator due to the noncommutativity in the phase space. Starting from a Gaussian squeezed envelope whose time evolution is driven by commutative (standard quantum mechanics) and noncommutative dynamics, respectively, we conclude that although the time-evolving covariance matrix in the noncommutative case is different from the standard case, the squeezing parameter dominates and there are no noticeable noncommutative corrections to the Bell operator. This indicates that, at least for squeezed states, the privileged states to test Bell correlations, noncommutativity versions of quantum mechanics remain as nonlocal as quantum mechanics itself.

  • Received 12 December 2015

DOI:https://doi.org/10.1103/PhysRevD.93.104055

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Catarina Bastos*

  • GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal

Alex E. Bernardini

  • Departamento de Física, Universidade Federal de São Carlos, P.O. Box 676, 13565-905 São Carlos, SP, Brasil

Orfeu Bertolami

  • Departamento de Física e Astronomia, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal

Nuno Costa Dias§ and João Nuno Prata

  • Escola Superior Náutica Infante D. Henrique, Av. Eng. Bonneville Franco, 2770-058 Paço de Arcos, Portugal

  • *catarina.bastos@tecnico.ulisboa.pt
  • alexeb@ufscar.br
  • Also at Centro de Física do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal. orfeu.bertolami@fc.up.pt
  • §Also at Grupo de Física Matemática, UL, Avenida Prof. Gama Pinto 2, 1649-003, Lisboa, Portugal. ncdias@meo.pt
  • joaoprata@enautica.pt

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Issue

Vol. 93, Iss. 10 — 15 May 2016

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