2014/01/31 by Arne L. Grimsmo, A L Grimsmo, A. S. Parkins +3
Computer Science · Physics and Astronomy · #Attractor #Computer science #Control (management) #Control theory (sociology) #Convergence (economics) #Dissipative system #Mathematical analysis #Mechanical and Optical Resonators #Nonlinear Dynamics and Pattern Formation #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Statistical physics #Steady state (chemistry) #cond-mat.quant-gas #quant-ph
paper · pdf · doi:10.1088/1367-2630/16/6/065004
published as New J. Phys. 16, 065004, 2014 · 25 pages, 9 figures. Invited paper in "Focus on Coherent Control of Complex Quantum Systems", Eds. B. Whaley and G. Milburn. PS: Preview on OSX struggles with opening some of the figures with a lot of data in them
openalex publication_date 2014/06/10 · arxiv created 2014/08/26 · arxiv updated 2014/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose a time-delayed feedback control scheme for open quantum systems that can dramatically reduce the time to reach steady state. No measurement is performed in the feedback loop, and we suggest a simple all-optical implementation for a cavity QED system. We demonstrate the potential of the scheme by applying it to a driven and dissipative Dicke model, as recently realized in a quantum gas experiment. The time to reach steady state can be reduced by two orders of magnitude for the parameters taken from the experiment, making previously inaccessible long time attractors reachable within typical experimental run times. The scheme also offers the possibility of slowing down the dynamics, as well as qualitatively changing the phase diagram of the system.