• Rapid Communication

Freezing distributed entanglement in spin chains

Irene D’Amico, Brendon W. Lovett, and Timothy P. Spiller
Phys. Rev. A 76, 030302(R) – Published 12 September 2007

Abstract

We show how to freeze distributed entanglement that has been created from the natural dynamics of spin chain systems. The technique that we propose simply requires single-qubit operations and isolates the entanglement in specific qubits at the ends of branches. Such frozen entanglement provides a useful resource, for example for teleportation or distributed quantum processing. The scheme can be applied to a wide range of systems—including actual spin systems and alternative qubit embodiments in strings of quantum dots, molecules, or atoms.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 31 May 2007

DOI:https://doi.org/10.1103/PhysRevA.76.030302

©2007 American Physical Society

Authors & Affiliations

Irene D’Amico1,*, Brendon W. Lovett2, and Timothy P. Spiller3

  • 1Department of Physics, University of York, York YO10 5DD, United Kingdom
  • 2Department of Materials, University of Oxford, OX1 3PH, United Kingdom
  • 3Hewlett-Packard Laboratories, Filton Road, Stoke Gifford, Bristol BS34 8QZ, United Kingdom

  • *ida500@york.ac.uk

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 76, Iss. 3 — September 2007

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×