Bell's theorem for general N-qubit states
- Author(s)
- Marek Zukowski, Caslav Brukner
- Abstract
A single general Bell inequality was derived which was a sufficient and necessary condition for the correlation function for N particles described in a local and realistic picture. The measurements on each particle could be chosen between two arbitrary dichotomic observables. A condition for an arbitrary N-qubit mixed state was also derived to violate this inequality. The condition obtained was a generalization and reformulation of the Horodecki family condition for two qubits.
- Organisation(s)
- Journal
- Physical Review Letters
- Volume
- 88
- No. of pages
- 4
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.88.210401
- Publication date
- 2002
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103026 Quantum optics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/bells-theorem-for-general-nqubit-states(58750463-a4f2-4f98-9b28-8d66942af647).html