Coherent states and global entanglement in an N qubit system

Piroska Dömötör, Mihály G. Benedict

Research output: Article

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 - máj. 19 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Coherent states and global entanglement in an N qubit system'. Together they form a unique fingerprint.

  • Cite this