Quantum processing and entanglement distribution in the Recife Quantum Network

• Nallyson W. S. Oliveira UFPE
• Larissa A. Bourbon UFPE
• André C. A. Siqueira UFPE
• Amanda M. de Lima UFPE
• Gabriel A. Crisóstomo UFPE
• Paulo Martins UFRPE
• Leandro L. L. Freitas UFPE
• Alexandre A. C. de Almeida UFPE
• Erico S. Teixeira Venturus
• Lúcio H. Acioli UFPE
• Leonardo D. Coelho UFPE
• José Ferraz UFRPE
• Ricardo L. Longo UFPE
• Joaquim F. Martins-Filho UFPE
• Daniel Felinto UFPE

DOI: https://doi.org/10.5753/sbccq.2026.23324

Resumo

The Recife Quantum Network is a multipurpose infrastructure supporting the development of quantum technologies in the city of Recife, Brazil. Here we describe a small branch of the network, up to 10 km long, dedicated to the distribution and processing of quantum states of light at wavelengths compatible to an atomic quantum memory. We report the development and characterization of an efficient source of photon pairs, with pair generation rates up to MHz, and their distribution in the network. We also introduce our architecture for photonic quantum processing in the system and our first theoretical proposals for applications.

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