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Entanglement and local information access for graph states

Virmani, Shashank (2007) Entanglement and local information access for graph states. New Journal of Physics, 9 (194). ISSN 1367-2630

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Abstract

We exactly evaluate a number of multipartite entanglement measures for a class of graph states, including d-dimensional cluster states (d = 1,2,3), the Greenberger-Horne-Zeilinger states, and some related mixed states. The entanglement measures that we consider are continuous, 'distance from separable states' measures, including the relative entropy, the so-called geometric measure, and robustness of entanglement. We also show that for our class of graph states these entanglement values give an operational interpretation as the maximal number of graph states distinguishable by local operations and classical communication (LOCC), as well as supplying a tight bound on the fixed letter classical capacity under LOCC decoding.

Item type: Article
ID code: 16860
Keywords: entanglement, local information access, graph states, multipartite entanglement measures, d-dimensional cluster states (d = 1, 2, 3), Greenberger-Horne-Zeilinger states, continuous, relative entropy, geometric measure, Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
Depositing user: Mrs Marie Henderson
Date Deposited: 19 Mar 2010 18:28
Last modified: 17 Jul 2013 00:13
URI: http://strathprints.strath.ac.uk/id/eprint/16860

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