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EnglishThere is a growing experimental interest in coupling cavity photons to the cyclotron resonance excitations of electron liquids in high-mobility semiconductor quantum wells or graphene sheets. These media offer unique platforms to carry out fundamental studies of exciton-polariton condensation and cavity quantum electrodynamics in a regime, in which electron-electron interactions are expected to play a pivotal role. Here, focusing on graphene, we present a theoretical study of the impact of electron-electron interactions on a quantum Hall polariton fluid, that is a fluid of magneto-excitons resonantly coupled to cavity photons. We show that electron-electron interactions are responsible for an instability of graphene integer quantum Hall polariton fluids towards a modulated phase. We demonstrate that this phase can be detected by measuring the collective excitation spectra, which is often at a characteristic wave vector of the order of the inverse magnetic length.
| Titolo: | Modulated phases of graphene quantum Hall polariton fluids | |
| Autori: | ||
| Editore: | Nature Research | |
| Data di pubblicazione: | 2016 | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1038/ncomms13355 | |
| Parole Chiave: | Chemistry (all); Biochemistry, Genetics and Molecular Biology (all); Physics and Astronomy (all) | |
| Parole chiave (inglese): | dielectric constant graphene Physics quantum hall polariton fluid quantum mechanics | |
| Handle: | http://hdl.handle.net/11384/73933 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Modulated-phases-of-graphene.pdf | full text | Altro materiale allegato |  | Open Access Visualizza/Apri |
http://hdl.handle.net/11384/73933
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