Contextuality as a Resource for Models of Quantum Computation with Qubits.

Bermejo-Vega, Juan; Delfosse, Nicolas; Browne, Dan E; Okay, Cihan; Raussendorf, Robert

Bermejo-Vega, Juan; Delfosse, Nicolas; Browne, Dan E; Okay, Cihan; Raussendorf, Robert.

Afiliación

Bermejo-Vega J; Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, 14195 Berlin, Germany.
Delfosse N; Max-Planck Institut für Quantum Optics, Theory Division, 85748 Garching, Germany.
Browne DE; Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA.
Okay C; Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
Raussendorf R; Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.

Phys Rev Lett ; 119(12): 120505, 2017 Sep 22.

Article en En | MEDLINE | ID: mdl-29341645

RESUMEN

A central question in quantum computation is to identify the resources that are responsible for quantum speed-up. Quantum contextuality has been recently shown to be a resource for quantum computation with magic states for odd-prime dimensional qudits and two-dimensional systems with real wave functions. The phenomenon of state-independent contextuality poses a priori an obstruction to characterizing the case of regular qubits, the fundamental building block of quantum computation. Here, we establish contextuality of magic states as a necessary resource for a large class of quantum computation schemes on qubits. We illustrate our result with a concrete scheme related to measurement-based quantum computation.

Texto completo

Añadir a Mi BVS

Imprimir

XML

PubMed Links

Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2017 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Estados Unidos

Texto completo

Añadir a Mi BVS

Imprimir

XML

PubMed Links

Buscar en Google