Phys. Rev. Lett. 85, 4418–4421 (2000)Violations of Local Realism by Two Entangled N-Dimensional Systems Are Stronger than for Two QubitsReceived 15 May 2000; published in the issue dated 20 November 2000 Tests of local realism versus quantum mechanics based on Bell's inequality employ two entangled qubits. We investigate the general case of two entangled quantum systems defined in N-dimensional Hilbert spaces, or “ quNits.” Via a numerical linear optimization method we show that violations of local realism are stronger for two maximally entangled quNits ( 3≤N≤9) than for two qubits and that they increase with N. The two quNit measurements can be experimentally realized using entangled photons and unbiased multiport beam splitters. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.4418
DOI:
10.1103/PhysRevLett.85.4418
PACS:
03.65.Bz, 42.50.Dv
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.