Experimental quantum Byzantine agreement on a three-user quantum network with integrated photonics.

ABSTRACT: Quantum communication networks are crucial for both secure communication and cryptographic networked tasks. Building quantum communication networks in a scalable and cost-effective way is essential for their widespread adoption. Here, we establish a complete polarization entanglement-based fully connected network, which features an ultrabright integrated Bragg reflection waveguide quantum source, managed by an untrusted service provider, and a streamlined polarization analysis module, which requires only one single-photon detector for each user. We perform a continuously working quantum entanglement distribution and create correlated bit strings between users. Within the framework of one-time universal hashing, we provide the experimental implementation of source-independent quantum digita

SUBMITTER: Jing X 

PROVIDER: S-EPMC11809609 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature