Depending on the way one measures, quantum nonlocality might manifest more visibly. Using basis transformations and interactions on a particle pair, Hardy logically argued that any local hidden variable theory leads to a paradox. Extended from the original work, we introduce a quantum nonlocal scheme for n-particle systems using two distinct approaches. First, a theoretical model is derived with analytical results for Hardy's nonlocality conditions and probability. Second, a quantum simulation using quantum circuits is constructed that matches very well to the analytical theory. When demonstrated on real quantum computers for n=3, we obtain reasonable results compared to theory. Even at macroscopic scales as n grows, the success probability asymptotes 15.6%, which is stronger than previous results.
@article{arxiv.2209.05716,
title = {Increased success probability in Hardy's nonlocality: Theory and demonstration},
author = {Duc Minh Tran and Van-Duy Nguyen and Le Bin Ho and Hung Q. Nguyen},
journal= {arXiv preprint arXiv:2209.05716},
year = {2023}
}