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Photoemission spectra of massless Dirac fermions on the verge of exciton condensation
Stefan Rist, A. A. Varlamov, A. H. MacDonald +2
Angle-resolved photoemission spectroscopy (ARPES) is a powerful probe of electron correlations in two-dimensional layered materials. In this Letter we demonstrate that ARPES can be…
Drude weight, cyclotron resonance, and the Dicke model of graphene cavity QED
Luca Chirolli, Marco Polini, Vittorio Giovannetti +1
The Dicke model of cavity quantum electrodynamics is approximately realized in condensed matter when the cyclotron transition of a two-dimensional electron gas is nearly resonant w…
Strong Coulomb drag and broken symmetry in double-layer graphene
R. V. Gorbachev, A. K. Geim, M. I. Katsnelson +7
Spatially separated electron systems remain strongly coupled by electron-electron interactions even when they cannot exchange particles, provided that the layer separation d is com…