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TT: Fachverband Tiefe Temperaturen

TT 4: Dynamics in many-body systems: Equilibriation and localization
(Joint session of DY and TT organized by DY)

TT 4.10: Talk

Monday, March 7, 2016, 12:00–12:15, H47

Reduced fluctuations in dissipative parametric oscillators — •Tobias Rexin, Beilei Zhu, and Ludwig Mathey — Zentrum für Optische Quantentechnologien und Institut für Laserphysik, Universität Hamburg, 22761 Hamburg, Germany

In this work we describe the non-equilibrium effects of a dissipative parametric oscillator system for which we derive an effective time-independent Hamiltonian via Magnus Expansion. The analytical result shows reduced variance in the high driving frequency and moderate driving amplitude regime, which also coincides with numerical results from the Langevin Equations. A chain of parametric oscillators exhibits similiar behavior.