Work

Dissipative two-mode Tavis-Cummings model with time-delayed feedback control

Year: 2015

Type: article

Abstract: We investigate the dynamics of a two-mode laser system by extending the two-mode Tavis-Cummings model with dissipative channels and incoherent pumping and by applying the mean-field approximation in the thermodynamic limit. To this end we analytically calculate up to four possible nonequilibrium steady states (fixed points) and determine the corresponding complex phase diagram. Various possible phases are distinguished by the actual number of fixed points and their stability. In addition, we apply three time-delayed Pyragas feedback control schemes. Depending on the time delay and the strength of the control term, this can lead to the stabilization of unstable fixed points or to the selection of a particular cavity mode that is macroscopically occupied.

Source: Physical Review A

DOI: 10.1103/physreva.92.063832

Authors: Wassilij Kopylov, Milan Radonjić, Tobias Brandes, Antun Balaž, Axel Pelster

Institutions: Technische Universität Berlin, University of Belgrade, Institute of Physics Belgrade, University of Kaiserslautern

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Deutsche Forschungsgemeinschaft, Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, German Academic Exchange Service London