Berlin 2015 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 103: Transport: Poster Session

TT 103.33: Poster

Donnerstag, 19. März 2015, 15:00–18:00, Poster B

Dirac Electrons in a Photon Cavity — •Lisa Heße 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 recently also proposed for graphene[2, 3] and therefore opens a new subfield of research in graphene. Based on a realistic tight-binding model, we consider the interaction of cavity photon modes with Landau quantized states in graphene and study the spectral properties of this hybrid system.

[1] 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).

[2] D. Hagenmüller and C. Ciuti,

Phys. Rev. Lett. 109, 267403 (2012).

[3] L. Chirolli, M. Polini, V. Giovannetti and A. H. MacDonald,

Phys. Rev. Lett. 109, 267404 (2012).