Construction of entanglement witnesses based on concurrence for multi-qubit states
2008 (English)In: Quantum information & computation, ISSN 1533-7146, Vol. 8, no 09-aug, 791-796 p.Article in journal (Refereed) Published
We establish a relation between concurrence and entanglement witnesses. In particular, we construct entanglement witnesses for three-qubit W and GHZ states in terms of concurrence. We also generalize our construction for multi-qubit states. This result gives the finest entanglement witnesses for a given class of state without any optimization.
Place, publisher, year, edition, pages
2008. Vol. 8, no 09-aug, 791-796 p.
entanglement, entanglement witnesses, concurrence, multipartite states
IdentifiersURN: urn:nbn:se:su:diva-58248ISI: 000258699300008OAI: oai:DiVA.org:su-58248DiVA: diva2:420123
authorCount :12011-05-312011-05-302011-05-31Bibliographically approved