Quantum Communication beyond the Localization Length in Disordered Spin Chains

Jonathan Allcock and Noah Linden
Phys. Rev. Lett. 102, 110501 – Published 17 March 2009

Abstract

We study the effects of localization on quantum state transfer in spin chains. We show how to use quantum error correction and multiple parallel spin chains to send a qubit with high fidelity over arbitrary distances, in particular, distances much greater than the localization length of the chain.

  • Figure
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  • Received 13 February 2008

DOI:https://doi.org/10.1103/PhysRevLett.102.110501

©2009 American Physical Society

Authors & Affiliations

Jonathan Allcock* and Noah Linden

  • Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, United Kingdom

  • *jon.allcock@bristol.ac.uk
  • n.linden@bristol.ac.uk

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Issue

Vol. 102, Iss. 11 — 20 March 2009

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