Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 69: Collective Effects and Disordered Systems
Q 69.6: Vortrag
Freitag, 6. März 2026, 12:15–12:30, P 2
Symbolic Quantum-Trajectory Method for Multichannel Dicke Superradiance — Raphael Holzinger4, •Nico Baßler1,2, Julian Lyne2,3, Susanne Yelin4, and Claudiu Genes1,2 — 1TU Darmstadt, Institute for Applied Physics, Hochschulstrasse 4A, D-64289 Darmstadt, Germany — 2Max Planck Institute for the Science of Light, Staudtstrass e 2, D-91058 Erlangen, Germany — 3Department of Physics, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Staudtstrasse 7, D-91058 Erlangen, Germany — 4Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
We develop and solve a Dicke superradiant model with two or more competing collective decay channels of tunable rates. Recent work analyzed stationary properties of multichannel Dicke superradiance using hydrodynamic mean-field approximations. We extend this with a symbolic quantum-trajectory method, providing a simple route to analytic solutions. For two channels, the behavior of the stationary ground-state distribution resembles a first-order phase transition at the point where the channel-rate ratio is equal to unity. For d competing channels, we obtain scaling laws for the superradiant peak time and intensity. These results unify and extend single-channel Dicke dynamics to multilevel emitters and provide a compact tool for cavity and waveguide experiments, where permutation-symmetric reservoirs engineer multiple collective decay paths.
Keywords: Superradiance; Open quantum systems; Phase transition; Coopeartivity; Multilevel emitters