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Q: Fachverband Quantenoptik und Photonik

Q 27: Poster: Quantum Optics and Photonics II

Q 27.9: Poster

Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof

Observation of a superradiant Mott insulator in the Dicke-Hubbard model — •Christoph Georges, Hans Kessler, Jens Klinder, Jose Vargas, and Andreas Hemmerich — Institut für Laserphysik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany

It is well known that the bosonic Hubbard model possesses a Mott insulator phase. Likewise, it is known that the Dicke model exhibits a self-organized superradiant phase. By implementing an optical lattice inside of a high finesse optical cavity both models are merged such that an extended Hubbard model with cavity-mediated infinite range interactions arises. In addition to a normal superfluid phase, two superradiant phases are found, one of them coherent and hence superfluid and one incoherent Mott insulating [1].

[1] J. Klinder et al., arXiv:1511.00850