Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster II

Q 55.93: Poster

Donnerstag, 11. März 2010, 16:00–19:00, Lichthof

Measuring non-Markovian dynamics using optomechanical systems — •Alexey Trubarov², Konrad Kieling¹, Simon Gröblacher², Markus Aspelmeyer², and Jens Eisert¹ — ¹Universität Potsdam — ²Universität Wien

We consider a system consisting of a micromechanical harmonic oscillator coupled to a thermal bath. Usually, for reasons of simplicity, the assumption is made that this heat bath is ohmic, i.e. is described by a linear spectral density. However, depending on the geometry of the specific mechanical oscillator at hand, this assumption does not have to be fulfilled. We show that the spectral density of the heat bath of the oscillator*s environment can be extracted from the dynamics of the mechanical system and we present first experimental results.