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Nonlinear effects in two-mode cavity QED systems


This project aims to bring cavity QED to the next level: we will investigate the nonlinear coupling between a single atom (with different level structures such as two-level, "Lambda"- and "N"-configurations) and two distinguishable photons, achieved by strongly coupling the atom to two different optical resonator modes, thus extending the standard cavity QED scenario (with one optical mode). We will investigate high-intensity effects like four-wave mixing that can be expected already at the level of single photons per mode. We will also study phenomena with more than one photon, going beyond the results reported for very low photon numbers in [C. Hamsen et al., Nature Physics, 14, 885 (2018)]. Possible applica-tions include the nondemolition measurement of the number of photons in a given mode. The project will strongly contribute to the strengthening of the scientific collaborations between the MPQ and UFSCar groups, as well as the involvement of doctoral students and postdoctoral researchers. (AU)

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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)
TOLAZZI, KARL NICOLAS; WANG, BO; IANZANO, CHRISTOPHER; NEUMEIER, JONAS; VILLAS-BOAS, CELSO JORGE; REMPE, GERHARD. Continuous quantum light from a dark atom. COMMUNICATIONS PHYSICS, v. 4, n. 1 MAR 23 2021. Web of Science Citations: 1.
VILLAS-BOAS, CELSO JORGE; TOLAZZI, KARL NICOLAS; WANG, BO; IANZANO, CHRISTOPHER; REMPE, GERHARD. Continuous Generation of Quantum Light from a Single Ground-State Atom in an Optical Cavity. Physical Review Letters, v. 124, n. 9 MAR 6 2020. Web of Science Citations: 0.

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