Physics – Quantum Physics
Scientific paper
2000-05-06
Physics
Quantum Physics
5 pages, 2 pictures, LaTex, two columns; No changes in the results
Scientific paper
10.1103/PhysRevLett.85.4418
Tests of local realism vs quantum mechanics based on Bell's inequality employ two entangled qubits. We investigate the general case of two entangled quNits, i.e. quantum systems defined in an N-dimensional Hilbert space. Via a numerical linear optimization method we show that violations of local realism are stronger for two maximally entangled quNits (N=3,4,...,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 beamsplitters.
Gnacinski Piotr
Kaszlikowski Dagomir
Miklaszewski Wieslaw
Zeilinger Anton
Zukowski Marek
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