Dresden 2014 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 101: Transport - Poster Session

TT 101.34: Poster

Thursday, April 3, 2014, 15:00–19:00, P2

Dynamics of Dirac Electrons in a Photon Cavity — •Lisa Heße, Viktor Krückl, and Klaus Richter — Institut für Theoretische Physik, Universität Regensburg, 93040 Regensburg, Germany

We consider low energy excitations of monolayer graphene embedded in an optical cavity and exposed to a perpendicular constant magnetic field. The influence of an additional radiation field can yield resonant cyclotron transitions of the Dirac fermions of graphene which can be studied using techniques known from cavity quantum electrodynamics. The coupling of cavity photons with condensed matter has been realized in the context of electron gases[1] and very recently also proposed for graphene[2, 3] and therefore opens a new subfield of research in graphene. By considering the interaction of cavity photon modes with Landau quantized states in graphene numerically based on a realistic tight-binding model we aim at clarifying the recent contradicting issue[2, 3] concerning the existance of a superradiant ground state in such systems.
G. Scalari, C. Maissen, D. Turčinková, D. Hagenmüller, S. De Liberato, C. Ciuti, C. Reichl, D. Schuh, W. Wegscheider, M. Beck, and J. Faist, Science 335, 1323 (2012)
D. Hagenmüller and C. Ciuti, Phys. Rev. Lett. 109, 267403 (2012)
L. Chirolli, Marco Polini, V. Giovannetti and A. H. MacDonald, Phys. Rev. Lett. 109, 267404 (2012)