Bell's theorem for general N-qubit states

Preprint

16 September 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0102039

Abstract

We derive a single general Bell inequality which is a necessary and sufficient condition for the correlation function for N particles to be describable in a local and realistic picture, for the case in which measurements on each particle can be chosen between two arbitrary dichotomic observables. We also derive a necessary and sufficient condition for an arbitrary N-qubit mixed state to violate this inequality. This condition is a generalization and reformulation of the Horodeccy family condition for two qubits.

Keywords

REALISTIC PICTURE
BELL INEQUALITY
SINGLE GENERAL
BELL'S THEOREM
QUBIT STATES
GENERAL BELL
INEQUALITY
PARTICLE

All Related Versions

Version 1, 2001-02-06, ArXiv
Version 2, 2002-01-02, ArXiv
Version 3, 2002-09-16, ArXiv
Published version: Physical Review Letters, 88 (21), 210401.

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