Coherent states and global entanglement in an N qubit system

Piroska Dömötör, Mihály G. Benedict

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We consider an N qubit system and show that in the symmetric subspace, S, a pure state is not globally entangled, iff it is a coherent state. It is also proven that in the orthogonal complement S all states are globally entangled.

Original languageEnglish
Pages (from-to)3792-3795
Number of pages4
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume372
Issue number21
DOIs
Publication statusPublished - May 19 2008

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Cite this

Coherent states and global entanglement in an N qubit system. / Dömötör, Piroska; Benedict, Mihály G.

In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 372, No. 21, 19.05.2008, p. 3792-3795.

Research output: Contribution to journalArticle

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