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Cold atoms, photons, and quantum correlations

Grant number: 19/13143-0
Support type:Regular Research Grants
Duration: November 01, 2019 - October 31, 2023
Field of knowledge:Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
Cooperation agreement: ANR
Principal Investigator:Romain Pierre Marcel Bachelard
Grantee:Romain Pierre Marcel Bachelard
Principal investigator abroad: Hugbart Mathilde
Institution abroad: Centre National de la Recherche Scientifique, France
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Assoc. researchers:Alan Costa dos Santos ; Celso Jorge Villas-Bôas ; Philippe Wilhelm Courteille ; Raul Celistrino Teixeira


Devices for quantum information computation and communication require the combined use of different quantum systems: photons can transmit informations over large distances, cold trapped atoms can bemanipulated to enable quantum information processing, and atomic ensembles are suited for long-livedquantum memories, as well as non-linear generation of non-classical correlations. Cold atoms are apromising platform to manipulate light, and in this project we will focus on two specific quantuminformation tools: sources of correlated photons and memories, exploiting collective, multimode quantumstates of atomic ensembles. We will address cooperative scattering in large atomic clouds to enhance theseproperties, i.e., we aim at showing how dipole-dipole interactions make it possible to tune both the lifetimeand the optical coherences of the emitted light. (AU)

Scientific publications
(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)
CIDRIM, A.; DO ESPIRITO SANTO, T. S.; SCHACHENMAYER, J.; KAISER, R.; BACHELARD, R. Photon Blockade with Ground-State Neutral Atoms. Physical Review Letters, v. 125, n. 7 AUG 13 2020. Web of Science Citations: 1.

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