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Plasmons and Coulomb drag in Dirac/Schroedinger hybrid electron systems
Alessandro Principi, Matteo Carrega, Reza Asgari +2
We show that the plasmon spectrum of an ordinary two-dimensional electron gas (2DEG) hosted in a GaAs heterostructure is significantly modified when a graphene sheet is placed on t…
Theory of Coulomb drag for massless Dirac fermions
M. Carrega, T. Tudorovskiy, A. Principi +2
Coulomb drag between two unhybridized graphene sheets separated by a dielectric spacer has recently attracted considerable theoretical interest. We first review, for the sake of co…
Environmental induced renormalization effects in quantum Hall edge states
A. Braggio, D. Ferraro, M. Carrega +2
We propose a general mechanism for renormalization of the tunneling exponents in edge states of the fractional quantum Hall effect. Mutual effects of the coupling with out-of-equil…
Spectral noise for edge states at filling factor
M. Carrega, D. Ferraro, A. Braggio +2
We present a detailed analysis of finite frequency noise for the fractional quantum Hall state in a quantum point contact geometry. The results are obtained within the Pfaf…