Cavity quantum electrodynamical Chern insulator: Towards light-induced 
quantized anomalous Hall effect in graphene

Wang, X.; Ronca, E.; Sentef, M. A.

doi:10.1103/PhysRevB.99.235156

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Cavity quantum electrodynamical Chern insulator: Towards light-induced quantized anomalous Hall effect in graphene

MPS-Authors

/persons/resource/persons226551

Ronca, E.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

/persons/resource/persons182604

Sentef, M. A.
Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

External Resource

https://arxiv.org/abs/1903.00339
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https://dx.doi.org/10.1103/PhysRevB.99.235156
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引用

Wang, X., Ronca, E., & Sentef, M. A. (2019). Cavity quantum electrodynamical Chern insulator: Towards light-induced quantized anomalous Hall effect in graphene. Physical Review B, 99(23):. doi:10.1103/PhysRevB.99.235156.

引用: https://hdl.handle.net/21.11116/0000-0003-310C-9

要旨

We show that an energy gap is induced in graphene by light-matter coupling to a circularly polarized photon mode in a cavity. Using many-body perturbation theory, we compute the electronic spectra which exhibit photon-dressed sidebands akin to Floquet sidebands for laser-driven materials. In contrast with Floquet topological insulators, in which a strictly quantized Hall response is induced by light only for off-resonant driving in the high-frequency limit, the photon-dressed Dirac fermions in the cavity show a quantized Hall response characterized by an integer Chern number. Specifically for graphene, we predict that a Hall conductance of 2e²/h can be induced in the low-temperature limit.