Year: 2024
Type: preprint
Abstract: The certification of randomness is essential for both fundamental science and information technologies. Unlike traditional random number generators, randomness obtained from nonlocal correlations is fundamentally guaranteed to be unpredictable. However, it is also highly susceptible to noise. Here, we show that extending the conventional bipartite Bell scenario to hybrid quantum networks -- which incorporate both quantum channels and entanglement sources -- enhances the robustness of certifiable randomness. Our protocol even enables randomness to be certified from Bell-local states, broadening the range of quantum states useful for this task. Through both theoretical analysis and experimental validation in a photonic network, we demonstrate enhanced performance and improved noise resilience.
Source: arXiv (Cornell University)
Institutions: Griffith University, Centre for Quantum Computation and Communication Technology, University of Pavia, Universidade Federal do Rio Grande do Norte, Freie Universität Berlin, Centre National de la Recherche Scientifique, Sorbonne Université, LIP6, UNSW Sydney, University of Fribourg, Institute of Photonic Sciences, The University of Sydney
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4405767267