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

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

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
(Preprint)

https://dx.doi.org/10.1103/PhysRevB.99.235156
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

PhysRevB.99.235156.pdf
(Publisher version), 3MB

Supplementary Material (public)

There is no public supplementary material available

Citation

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): 235156. doi:10.1103/PhysRevB.99.235156.

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

Abstract

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.