Multipartite entanglement, quantum-error-correcting codes, and entangling power of quantum evolutions

A. J. Scott
Phys. Rev. A 69, 052330 – Published 27 May 2004

Abstract

We investigate the average bipartite entanglement, over all possible divisions of a multipartite system, as a useful measure of multipartite entanglement. We expose a connection between such measures and quantum-error-correcting codes by deriving a formula relating the weight distribution of the code to the average entanglement of encoded states. The multipartite entangling power of quantum evolutions is also investigated.

  • Figure
  • Received 28 October 2003

DOI:https://doi.org/10.1103/PhysRevA.69.052330

©2004 American Physical Society

Authors & Affiliations

A. J. Scott*

  • Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131-1156, USA

  • *Electronic address: ascott@phys.unm.edu

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Issue

Vol. 69, Iss. 5 — May 2004

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