Rostock 2019 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 29: Quantum Effects

Q 29.6: Vortrag

Mittwoch, 13. März 2019, 12:00–12:15, S Gr. HS Maschb.

Multilevel interference in superradiant emission — •Aleksei Konovalov, Andreas Buchheit, and Giovanna Morigi — Saarland university, 66123 Saarbrucken, Germany

Quantum interference in the light emitted by multilevel systems causes frequency shifts in spectroscopic signals [1]. In order to be able to accurately describe these frequency shifts, multilevel-interference terms must be consistently included in the master equation of atoms forming an optically dense medium. We derive a master equation for dipole-dipole interactions using the coarse-graining procedure which consistently describes these dynamics. This master equation preserves the Lindblad form and includes terms beyond the rotating wave approximation. We then determine the resonance fluorescence and frequency shift of two atoms as a function of their distance taking into account their relevant level structures and discuss the relevance of multilevel interference in determining the spectroscopic properties.

[1] Andreas Alexander Buchheit and Giovanna Morigi, PHYSICAL REVIEW A 94, 042111 (2016)