Quantum Rio network

• Grant number: 21/06823-5
• Support Opportunities: Research Projects - Thematic Grants
• Start date: July 01, 2022
• End date: June 30, 2027
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Agreement: MCTI/MC
• Principal Investigator: Antonio Zelaquett Khoury
• Grantee: Antonio Zelaquett Khoury
• Host Institution: Instituto de Física. Universidade Federal Fluminense (UFF). Niterói , SP, Brazil
• City of the host institution: Niterói
• Principal investigators: Fernando da Rocha Vaz Bandeira de Melo ; Guilherme Penello Temporão
• Associated researchers: Gabriel Horacio Aguilar ; Gabriela Barreto Lemos ; Gustavo Castro do Amaral ; Nilton Alves Junior ; Thiago Barbosa dos Santos Guerreiro
• Associated scholarship(s): 24/23878-6 - Experimental realization of the free space link in the Rio Quantum Network, BP.TT; 24/13313-1 - Quantum communication with structured light, BP.IC; 23/05061-0 - Rio Quantum Network: Optical communication with structured light, BP.TT; + associated scholarships 22/15035-3 - Optical communication with structured light, BP.DD; 22/15036-0 - Structured light interaction in nonlinear optics, BP.DD; 22/15639-6 - Rio Quantum Network, BP.TT - associated scholarships

Abstract

The project consists in the construction and establishment of a metropolitan quantum communication network connecting the institutions PUC-Rio, CBPF and UFRJ through optical fibers of the Rede Rio, and the UFF institution with a free space link and/or using a "live" optical fiber. Initially, we will implement the MDI-QKD quantum cryptography protocol to enable secure communication between two nodes of the network independently, without any additional security assumptions. This project will establish the necessary conditions for the further implementation of several quantum communication protocols, including quantum computing in the cloud, paving the way for the integration of Brazil to the quantum internet. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DOS SANTOS, G. H.; SANTOS JR, A. L. S.; DE OLIVEIRA, M. GIL; BARBOSA, A. C.; DA SILVA, B. PINHEIRO; DA SILVA, N. RUBIANO; CANAS, G.; WALBORN, S. P.; KHOURY, A. Z.; RIBEIRO, P. H. SOUTO. Experimental investigation of twist conservation in nonlinear optical three-wave mixing. PHYSICAL REVIEW APPLIED, v. 24, n. 3, p. 8-pg., 2025-09-26. (21/06823-5)

RODRIGUES, L. M.; FAGUNDES, L. MARQUES; SALLES, D. C.; DOS SANTOS, G. H.; KONDO, J. M.; RIBEIRO, P. H. SOUTO; KHOURY, A. Z.; DE ARAUJO, R. MEDEIROS. Resonance of vector vortex beams in a triangular optical cavity. SCIENTIFIC REPORTS, v. 14, n. 1, p. 7-pg., 2024-05-08. (21/06823-5)

SANTOS JR, A. L. S.; DE CARVALHO JR, J. C.; DE OLIVEIRA, M. GIL; CUBAS, E. V. S.; BARROS, R. F.; KHOURY, A. Z.; ALVES, G. B.. Optimal beam-displacement measurements using high-order structured light modes. PHYSICAL REVIEW APPLIED, v. 24, n. 2, p. 8-pg., 2025-08-21. (22/15036-0, 21/06823-5)

TEMPORAO, GUILHERME P.; RIPPER, PEDRO; GUERREIRO, THIAGO B.; AMARAL, GUSTAVO C. DO. Two-photon quantum state tomography of photonic qubits. PHYSICAL REVIEW A, v. 109, n. 2, p. 11-pg., 2024-02-02. (21/06736-5, 21/06823-5)

ALMEIDA, F.; SOUSA, I.; KREMER, O.; DA SILVA, B. PINHEIRO; TASCA, D. S.; KHOURY, A. Z.; TEMPORAO, G.; GUERREIRO, T.. Trapping Microparticles in a Structured Dark Focus. Physical Review Letters, v. 131, n. 16, p. 6-pg., 2023-10-20. (21/06736-5, 21/06823-5)

LUTTMANN, MARTIN; VIMAL, MEKHA; GUER, MATTHIEU; JEAN-FRANCOIS, HERGOTT; KHOURY, ANTONIO Z.; HERNANDEZ-GARCIA, CARLOS; PISANTY, EMILIO; RUCHON, THIERRY. Nonlinear up-conversion of a polarization M?bius strip with half-integer optical angular momentum. SCIENCE ADVANCES, v. 9, n. 12, p. 8-pg., 2023-03-24. (21/06823-5)

DE OLIVEIRA, M. GIL; SANTOS JUNIOR, A. L. S.; LIMA, P. M. R.; BARBOSA, A. C.; SILVA, B. PINHEIRO DA; PADUA, S.; KHOURY, A. Z.. Informationally complete orbital-angular-momentum tomography with intensity measurements. PHYSICAL REVIEW APPLIED, v. 24, n. 2, p. 11-pg., 2025-08-13. (21/06823-5, 22/15035-3, 22/15036-0)

DE OLIVEIRA, M. GIL; SANTOS JUNIOR, A. L. S.; BARBOSA, A. C.; DA SILVA, B. PINHEIRO; DOS SANTOS, G. H.; CANAS, G.; RIBEIRO, P. H. SOUTO; WALBORN, S. P.; KHOURY, A. Z.. Anomalous second harmonic generation of twisted Gaussian Schell model beams. OPTICS AND LASER TECHNOLOGY, v. 176, p. 7-pg., 2024-04-09. (21/06823-5)