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DY: Fachverband Dynamik und Statistische Physik

DY 41: Poster - Pattern/ Nonlinear Dyn./ Fluids/ Granular/ Critical Phen.

DY 41.6: Poster

Donnerstag, 3. April 2014, 17:00–19:00, P3

Stability of Binary Patterns in Optomechanical Arrays — •Christian Brendel, Roland Lauter, Steven Habraken, Max Ludwig, and Florian Marquardt — Institute for Theoretical Physics, Friedrich-Alexander University, Staudtstraße 7, 91058 Erlangen, Germany

We focus on two-dimensional arrays of mechanically coupled, laser-driven, optomechanical cells. Consisting of both an optical mode and a mechanical (vibrational) mode, those cells can be driven into self-sustained oscillations. A non-linear set of differential equations, that describe the evolution of the phases thereof, can be derived [1]. The parameters of this classical model can be tuned by the laser drives. We concentrate on binary patterns in which all oscillators are initialized to phases of 0 or pi. Being fixpoints of the equations of motion, the stability of these configurations is observed in limiting cases of the model. Moreover, we study the stability and time evolution of domain configurations within binary patterns and give an overview of the effects occurring in the parameter space.

[1] G. Heinrich, M. Ludwig, J. Qian, B. Kubala and F. Marquardt, Phys. Rev. Lett. 107, 043603 (2011)