Multipartite quantum correlated bright frequency combs
Year: 2025
Authors: Bensemhoun A., Cassina S., Gonzalez-Arciniegas C., Melalkia MF., Patera G., Faugier-Tovar J., Wilmart Q., Olivier S., Zavatta A., Martin A., Etesse J., Labonty L., Pfister O., D’Auria V., Tanzilli S.
Autors Affiliation: Univ Cote Azur, Inst Phys Nice, CNRS, 17 Rue Julien Laupretre, F-06200 Nice, France; Univ Insubria, Dept Sci & High Technol, Via Valleggio 11, I-22100 Como, Italy; Univ Virginia, Phys Dept, 382 McCormick Rd, Charlottesville, VA 22903 USA; Univ Virginia, Charles L Brown Dept Elect & Comp Engn, 351 McCormick Rd, Charlottesville, VA 22903 USA; Univ Lille, CNRS, UMR 8523, PhLAM Phys Lasers Atomes & Mol, F-59000 Lille, France; Univ Grenoble Alpes, CEA LETI, F-38000 Grenoble, France; CNR, Ist Nazl Ottica CNR INO, Largo Enrico Fermi 6, I-50125 Florence, Italy; Ecole Mil Polytech, Lab Syst Lasers, BP 17 Bordj Bahri, Algiers 16046, Algeria.
Abstract: This experimental work demonstrates multipartite quantum correlation in bright frequency combs out of a microresonator integrated on silicon nitride operating above its oscillation threshold. Multipartite features, going beyond so far reported two-mode correlation, naturally arise due to a cascade of nonlinear optical processes, making a single-color laser pump sufficient to initiate their generation. Our results show the transition from two-mode to multipartite correlation, witnessed by noise reductions as low as-2.5 dB and-2 dB, respectively, compared to corresponding classical levels. A constant of the movement of the nonlinear interaction Hamiltonian is identified and used to asses the multipartite behavior. Reported demonstrations pave the way to next generation on-chip multipartite sources for quantum technologies applications.
Journal/Review: PHYSICAL REVIEW RESEARCH
Volume: 7 (3) Pages from: 33173-1 to: 33173-8
More Information: This work has been conducted within the framework of the project OPTIMAL granted by the European Union by means of the Fond Europeen de developpement regional (FEDER) . The authors also acknowledge financial support from the Agence Nationale de la Recherche (ANR) through the projects S PHIFA (ANR-20-CE47-0012) and OQulus (ANR-22-PETQ-0013) , and from Academy RISE of Universite Cpte d’Azur. VDA thanks the Institut Universitaire de France for the support. O.P. acknowledges support from CNRS, Fondation Doeblin, and US NSF Grants No. ECCS-2219760 and No. PHY-2112867.A.B. mounted the entire experimental setup and took care of data acquisition and analysis, with the help of S.C., M.F.M., and A.Z.; C.G.A. found the original theoretical tool for witnessing multipartite intensity correlation, with the help of O.P.; S.O. and Q.W. designed and fabricated the SiN integrated structures; V.D.A. and O.P. conducted the data analysis and interpretation, with the help of A.M., J.E., G.P., L.L., and S.T. All authors read, discussed, and contributed to the writing, reviewing, and editing of the manuscript. V.D.A., L.L., and S.T. coordinated and managed the project, ensuring its successful completion.KeyWords: GenerationDOI: 10.1103/cc69-5gq2
