Local and nonlocal contents in N-qubit generalized Greenberger-Horne-Zeilinger states

Chang Liang Ren, Mahn Soo Choi

Research output: Contribution to journalArticle

Abstract

We investigate local contents in N-qubit generalized Greenberger-Horne-Zeilinger (GHZ) states. We suggest a decomposition for correlations in the GHZ states into a nonlocal and fully local part, and find a lower and upper bound on the local content. Our lower bound reproduces the previous result for N = 2 [V. Scarani, Phys. Rev. A 77, 042112 (2008)] and decreases rapidly with N.

Original languageEnglish
Article number054102
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume82
Issue number5
DOIs
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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