Trade-offs and experimental feasibility of nonlocal polygamy with two-outcome Bell inequalities

Abstract

Entanglement and Bell nonlocality have different sharing constraints across subsystems of a multipartite quantum system. We examine simultaneous violations of Bell inequalities with two-outcome observables and two or three measurement settings per party. We identify configurations whose simultaneous violations can be demonstrated on IBM Quantum hardware, and derive bounds and trade-off relations for several polygamous configurations. The results connect experimental capabilities of quantum computers with mathematical methods for studying the limits of quantum correlations.

arXiv comment34 pages, 9 figures, 22 tables, assisted by ChatGPT 6, contains real IBM Quantum data