Rabi Oscillations in Landau Quantized Graphene

Details Rabi Oscillations in Landau Quantized Graphene Rabi Oscillations in Landau Quantized Graphene

2008-07-30

arxiv.org/abs/0807.4794v1

Phys. Rev. Lett. 102, 036803 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.102.036803

The canonical model of quantum optics, the Jaynes-Cummings Hamiltonian describes a two level atom in a cavity interacting with electromagnetic field. Graphene, a condensed matter system, possesses low energy excitations obeying to the Dirac equation, and mimics the physics of quantum electrodynamics. These two seemingly unrelated fields turn out to be closely related to each other. We demonstrate that Rabi oscillations, corresponding to the excitations of the atom in the former case are observable in the optical response of the latter in quantizing magnetic field, providing us with a transparent picture about the structure of optical transitions in graphene. While the longitudinal conductivity reveals chaotic Rabi oscillations, the Hall component measures coherent ones. This opens up the exciting possibility of investigating a microscopic model of a few quantum objects in a macroscopic experiment of a bulk material with tunable parameters.

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