Bounding the entanglement of N qubits with only four measurements

S. M. Hashemi Rafsanjani; C. J. Broadbent; J. H. Eberly

doi:10.1103/PhysRevA.88.062331

Bounding the entanglement of N qubits with only four measurements

S. M. Hashemi Rafsanjani, C. J. Broadbent, J. H. Eberly

Physics

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We introduce a measure for the genuinely N-partite (all-party) entanglement of N-qubit states using the trace distance metric and find an algebraic formula for the Greenberger-Horne-Zeilinger (GHZ)-diagonal states. We then use this formula to show how the all-party entanglement of experimentally produced GHZ states of an arbitrary number of qubits may be bounded with only four measurements.

Original language	English (US)
Article number	062331
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	88
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.88.062331
State	Published - Dec 26 2013

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1103/PhysRevA.88.062331

Cite this

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