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Hannover 2013 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 39: Quantum effects: Light scattering and propagation

Q 39.3: Talk

Wednesday, March 20, 2013, 14:30–14:45, F 342

The Quantum Nature of Random Lasers — •Regine Frank — Institut für Theoretsiche Physik, Universität Tübingen

Within this talk we present quantitative theoretical results for the quantum coherence of random laser light. The coherence is derived within a closed framework of diagrammatic quantum field theory coupled to a laser rate equation system. Furthermore, it is demonstrated how the ratio between classical coherence and quantum coherence can be tuned by dissipation. Decoherence effects are responsible for the lasing spot diameter on the one hand, but it can be derived quantitatively how the quantum nature of random lasers suffers due to decoherence.

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