Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 33: Delay and Feedback Dynamics

DY 33.1: Vortrag

Dienstag, 13. März 2018, 14:00–14:15, BH-N 334

Exploring chaos synchronization in quantum-dot micropillar lasers coupled with delay — •Xavier Porte¹, Sören Kreinberg¹, Steffen Holzinger¹, David Schicke², Benjamin Lingnau², Martin Kamp³, Christian Schneider³, Sven Höfling^3,4, Kathy Lüdge², and Stephan Reitzenstein¹ — ¹Institut für Festkörperphysik, Technische Universität Berlin, Berlin, Germany — ²Institut für Theoretische Physik, Technische Universität Berlin, Berlin, Germany — ³Technische Physik, Julius-Maximilians-Universität Würzburg, Würzburg, Germany — ⁴School of Physics and Astronomy, University of St Andrews, Scotland

Spontaneous synchronization is a universal behavior of coupled systems that only recently is being explored in the quantum domain. A particularly intriguing case is the phenomenon of chaos synchronization between nonlinear oscillators when they are coupled with delay. Semiconductor lasers are excellent examples of such systems, offering the additional key advantage of potential miniaturization to the limits of cavity quantum electrodynamics. In the present work, we explore the phenomenon of chaos synchronization applied to quantum-dot based micropillar lasers. We optically couple two nanolasers in a relay configuration, where both lasers receive self- and mutual-coupling. We investigate the coupling parameters dependencies and their influence on the correlation of the dynamics. Different synchronization regimes are demonstrated like leader-laggard and zero-lag synchronization. Our results pave the way to use nanolasers as testbed systems to study chaos synchronization in the quantum regime.