Quantum walk with a four-dimensional coin

Craig S Hamilton, Aurél Gábri, Igor Jex, Stephen M Barnett

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We examine the physical implementation of a discrete time quantum walk with a four-dimensional coin. Our quantum walker is a photon moving repeatedly through a time delay loop, with time being our position space. The quantum coin is implemented using the internal states of the photon: the polarization and two of the orbital angular momentum states. We demonstrate how to implement this physically and what components would be needed. We then illustrate some of the results that could be obtained by performing the experiment.

LanguageEnglish
Article number013015
Number of pages14
JournalNew Journal of Physics
Volume13
DOIs
Publication statusPublished - 13 Jan 2011

Fingerprint

photons
time lag
angular momentum
orbitals
polarization

Keywords

  • orbital angular-momentum
  • modes
  • light
  • quantum mechanics

Cite this

Hamilton, C. S., Gábri, A., Jex, I., & Barnett, S. M. (2011). Quantum walk with a four-dimensional coin. New Journal of Physics, 13, [013015]. https://doi.org/10.1088/1367-2630/13/1/013015
Hamilton, Craig S ; Gábri, Aurél ; Jex, Igor ; Barnett, Stephen M. / Quantum walk with a four-dimensional coin. In: New Journal of Physics. 2011 ; Vol. 13.
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Hamilton, CS, Gábri, A, Jex, I & Barnett, SM 2011, 'Quantum walk with a four-dimensional coin' New Journal of Physics, vol. 13, 013015. https://doi.org/10.1088/1367-2630/13/1/013015

Quantum walk with a four-dimensional coin. / Hamilton, Craig S; Gábri, Aurél; Jex, Igor; Barnett, Stephen M.

In: New Journal of Physics, Vol. 13, 013015, 13.01.2011.

Research output: Contribution to journalArticle

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