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Using Polarization to Control the Phase of Spatial Modes for Application in Quantum Information

  • Condensed Matter
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An Erratum to this article was published on 13 November 2014

Abstract

Exploiting spatial modes and polarization, we experimentally demonstrate the realization of a conditional π-phase shift. Our approach is based on an optical circuit where the polarization and transverse degrees of freedom control the Gouy phase which is applied on Hermite-Gaussian beams. Our results show good wo-qubit states has beengood agreement with the simulation of the optical circuit. As an application, we propose the implementation of a two-qubit quantum phase gate, where the qubits are encoded on the Hermite-Gaussian modes and linear polarization states.

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Acknowledgments

Funding was provided by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ-BR), and Instituto Nacional de Ciência e Tecnologia de Informação Quântica (INCT-IQ-CNPq).

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Authors and Affiliations

  1. Programa de Pós Graduação em Física and Instituto de Ciências Exatas, Universidade Federal Fluminense, Volta Redonda, Rio de Janeiro, Brazil

    W. F. Balthazar

  2. Escola de Engenharia Industrial Metalúrgica de Volta Redonda, Universidade Federal Fluminense, Volta Redonda, Rio de Janeiro, Brazil

    D. P. Caetano

  3. Instituto de Ciências Exatas and Programa de Pós-Graduação em Física, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil

    C. E. R. Souza & J. A. O. Huguenin

Authors
  1. W. F. Balthazar
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  2. D. P. Caetano
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  3. C. E. R. Souza
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  4. J. A. O. Huguenin
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Corresponding author

Correspondence to J. A. O. Huguenin.

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Balthazar, W.F., Caetano, D.P., Souza, C.E.R. et al. Using Polarization to Control the Phase of Spatial Modes for Application in Quantum Information. Braz J Phys 44, 658–664 (2014). https://doi.org/10.1007/s13538-014-0250-6

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  • DOI: https://doi.org/10.1007/s13538-014-0250-6

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