The assumption of source independence was used to reveal nonlocal (apart from standard Bell-CHSH scenario) nature of correlations generated in entanglement swapping experiments. In this work, we have derived a set of sufficient criteria, imposed on the states (produced by the sources) under which source independence can reveal nonbilocal nature of correlations in a quantum network. To show this, we have considered real two qubit X states thereby discussing the various utilities of assuming source independence in a quantum network.
@article{arxiv.1410.0257,
title = {Revealing Quantum Advantage in a Quantum Network},
author = {Kaushiki Mukherjee and Biswajit Paul and Debasis Sarkar},
journal= {arXiv preprint arXiv:1410.0257},
year = {2023}
}
Comments
14 pages, 6 figures, revtex, comments welcome, to appear in qip