An experimental setup for testing quantum nonlocality of N qubits is proposed. This method is a generalization of the optical setup proposed by Banaszek and Wodkiewicz [1]. The quantum nonlocality of N qubits can be obtained through its violation of N-qubit Bell inequalities. The correlation function measured in the experiment is described by the Wigner function. The effect of inefficient detector is also considered.
@article{arxiv.quant-ph/0510013,
title = {Quantum Nonlocality of N-qubit W states},
author = {Chunfeng Wu and Jing-Ling Chen and L. C. Kwek and C. H. Oh},
journal= {arXiv preprint arXiv:quant-ph/0510013},
year = {2009}
}
Comments
5 pages and 2 figures, some errors are corrected in v2