Quantum entanglement generation with surface acoustic waves

G. Giavaras, J. H. Jefferson, A. Ramšak, T. P. Spiller, and C. J. Lambert
Phys. Rev. B 74, 195341 – Published 30 November 2006

Abstract

We propose a scheme to produce spin entangled states for two interacting electrons. One electron is bound in a well in a semiconductor quantum wire and the second electron is transported along the wire, trapped in a surface acoustic wave (SAW) potential minimum. We investigate the conditions for which the Coulomb interaction between the two electrons induces entanglement. Detailed numerical investigation reveals that the two electrons can be fully spin entangled depending on the confinement characteristics of the well and the SAW potential amplitude.

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  • Received 29 June 2006

DOI:https://doi.org/10.1103/PhysRevB.74.195341

©2006 American Physical Society

Authors & Affiliations

G. Giavaras1,2, J. H. Jefferson2, A. Ramšak3, T. P. Spiller4, and C. J. Lambert1

  • 1Department of Physics, Lancaster University, Lancaster LA14YB, England
  • 2QinetiQ, St. Andrews Road, Malvern WR143PS, England
  • 3Faculty of Mathematics and Physics, University of Ljubljana and J. Stefan Institute, 1000 Ljubljana, Slovenia
  • 4Hewlett-Packard Laboratories, Filton Road, Stoke Gifford, Bristol, BS34 8QZ, United Kingdom

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Issue

Vol. 74, Iss. 19 — 15 November 2006

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