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Q: Fachverband Quantenoptik und Photonik

Q 18: Quantum Optics: Cavity and Waveguide QED I

Q 18.4: Vortrag

Dienstag, 7. März 2023, 12:00–12:15, E214

Cascaded photon emission of a single three-level ladder atom into two cavities — •Gianvito Chiarella, Tobias Frank, Pau Farrera, and Gerhard Rempe — Max Planck Institute for Quantum Optics, Garching bei München, Germany

Crossed Fiber Cavities coupled to single 87Rb atoms have proven to be a potentially useful resource for quantum communication applications [1,2]. Their main feature lies in the capability to couple two distinct light modes to two atomic transitions simultaneously with high cooperativity. This property makes them a good candidate for the investigation of fundamental phenomena in quantum optics which manifest in the presence of two vacuum fields strongly interacting with the atom. We explore the scenario where the cavities couple to two electrical-dipole transitions of a three-level ladder atom. In certain parameters regimes, we predict an effect for which the atom relaxes down the ladder states into its ground state emitting two resonant photons without populating the intermediate state. In this talk, I will present the theoretical simulation of such a model and discuss its experimental implementation.