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Discrete phase-space structures and Wigner functions for N qubits

  • C. Muñoz
  • A. B. Klimov
  • L. Sánchez-Soto
Article
  • 194 Downloads

Abstract

We further elaborate on a phase-space picture for a system of N qubits and explore the structures compatible with the notion of unbiasedness. These consist of bundles of discrete curves satisfying certain additional properties and different entanglement properties. We discuss the construction of discrete covariant Wigner functions for these bundles and provide several illuminating examples.

Keywords

Wigner function Mutually unbiased bases keyword Entanglement 

Notes

Acknowledgements

This work is partially supported by the Grant 254127 of CONACyT (Mexico). L. L. S. S. acknowledges the support of the Spanish MINECO (Grant FIS2015-67963-P).

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Departamento de FísicaUniversidad de GuadalajaraGuadalajaraMexico
  2. 2.Departamento de Óptica, Facultad de FísicaUniversidad ComplutenseMadridSpain
  3. 3.Max-Planck-Institut für die Physik des LichtsErlangenGermany

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