Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 27: Poster: Quantum Optics and Photonics II
Q 27.15: Poster
Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof
Microscopic Model of Photon Condensation — •Milan Radonjić1,2, Wassilij Kopylov3, Tobias Brandes3, Antun Balaž2, and Axel Pelster4 — 1Faculty of Physics, University of Vienna, Austria — 2Institute of Physics Belgrade, University of Belgrade, Serbia — 3Institute for Theoretical Physics, Technische Universität Berlin, Germany — 4Physics Department and Research Center OPTIMAS, Technische Universität Kaiserslautern, Germany
Effectively a two-dimensional photon gas in an optical microcavity filled with dye solution features Bose-Einstein condensation. This has first been experimentally demonstrated in Bonn [1] as well as recently in London [2], and can be theoretically understood within the framework of a non-equilibrium description [3,4]. We critically analyze and extend the latter description by including coherent coupling between microcavity photons and dye molecules, influenced by the solvent, in addition to a dissipative coupling that leads to thermalization. Our preliminary results indicate that strong interaction of the dye and the solvent favors the thermalization and makes possible Bose-Einstein condensation of photons, while weak solvent influence promotes the coherent dynamics and enables formation of a laser-like state.
[1] J. Klaers, J. Schmitt, F. Vewinger, and M. Weitz, Nature (London) 468, 545 (2010)
[2] J. Marelic and R. A. Nyman, Phys. Rev. A 91, 033813 (2015)
[3] P. Kirton and J. Keeling, Phys. Rev. Lett. 111, 100404 (2013)
[4] P. Kirton and J. Keeling, Phys. Rev. A 91, 033826 (2015)