Persistent Entanglement in Arrays of Interacting Particles

Hans J. Briegel and Robert Raussendorf
Phys. Rev. Lett. 86, 910 – Published 29 January 2001
PDFExport Citation

Abstract

We study the entanglement properties of a class of N-qubit quantum states that are generated in arrays of qubits with an Ising-type interaction. These states contain a large amount of entanglement as given by their Schmidt measure. They also have a high persistency of entanglement which means that N/2 qubits have to be measured to disentangle the state. These states can be regarded as an entanglement resource since one can generate a family of other multiparticle entangled states such as the generalized Greenberger-Horne-Zeilinger states of <N/2 qubits by simple measurements and classical communication.

  • Received 11 April 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.910

©2001 American Physical Society

Authors & Affiliations

Hans J. Briegel and Robert Raussendorf

  • Sektion Physik, Ludwig-Maximilians-Universität, Theresienstrasse 37, D-80333 München, Germany

References (Subscription Required)

Click to Expand
Issue

Vol. 86, Iss. 5 — 29 January 2001

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 Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×