Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 54: Poster 3

Q 54.72: Poster

Donnerstag, 15. März 2012, 16:30–19:00, Poster.I+II

Validity of the quantum regression formula for resonance fluorescence in a photonic crystal — •Geesche Boedecker and Carsten Henkel — Universität Potsdam

In many theoretical treatments of open quantum systems, the Markov assumption is made, i.e., quanta emitted by the system disappear rapidly in the bath. A photonic crystal provides a structured photon continuum where this is not justified, due to strong backscattering and the formation of band gaps. We evaluate within the second-order Born approximation the spectrum of resonance fluorescence. Predictions from the quantum regression theorem are compared with Kubo’s formula (linear response theory) that does not make use of the Markov approximation.