Driven Quantum Walks

Craig S. Hamilton, Regina Kruse, Linda Sansoni, Christine Silberhorn, and Igor Jex
Phys. Rev. Lett. 113, 083602 – Published 21 August 2014
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Abstract

We introduce the concept of a driven quantum walk. This work is motivated by recent theoretical and experimental progress that combines quantum walks and parametric down-conversion, leading to fundamentally different phenomena. We compare these striking differences by relating the driven quantum walks to the original quantum walk. Next, we illustrate typical dynamics of such systems and show that these walks can be controlled by various pump configurations and phase matchings. Finally, we end by proposing an application of this process based on a quantum search algorithm that performs faster than a classical search.

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  • Received 30 April 2014

DOI:https://doi.org/10.1103/PhysRevLett.113.083602

© 2014 American Physical Society

Authors & Affiliations

Craig S. Hamilton1,*, Regina Kruse2, Linda Sansoni2, Christine Silberhorn2, and Igor Jex1

  • 1FNSPE, Czech Technical University in Prague, Břehová 7, 115 19 Praha 1, Czech Republic
  • 2Applied Physics, University of Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany

  • *hamilcra@fjfi.cvut.cz

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Issue

Vol. 113, Iss. 8 — 22 August 2014

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