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13 papers · 1 filter
RKKY interaction in gapped or doped graphene
E. Kogan
In our previous work (E. Kogan, Phys. Rev. B {\bf 84}, 115119 (2011)) we calculated RKKY interaction between two magnetic impurities in pristine graphene using the Green's function…
Density of states of a dissipative quantum dot coupled to a quantum wire
Moshe Goldstein, Richard Berkovits
We examine the local density of states of an impurity level or a quantum dot coupled to a fractional quantum Hall edge, or to the end of a single one-dimensional Luttinger-liquid l…
Interacting resonant level coupled to a Luttinger liquid: Population vs. density of states
Moshe Goldstein, Yuval Weiss, Richard Berkovits
We consider the problem of a single level quantum dot coupled to the edge of a one-dimensional Luttinger liquid wire by both a hopping term and electron-electron interactions. Usin…
Non-equilibrium 1D many-body problems and asymptotic properties of Toeplitz determinants
D. B. Gutman, Yuval Gefen, A. D. Mirlin
Non-equilibrium bosonization technique facilitates the solution of a number of important many-body problems out of equilibrium, including the Fermi-edge singularity, the tunneling…
Onset of an Insulating Zero-Plateau Quantum Hall State in Graphene
Efrat Shimshoni, H. A. Fertig, G. Venketeswara Pai
We analyze the dissipative conductance of the zero-plateau quantum Hall state appearing in undoped graphene in strong magnetic fields. Charge transport in this state is assumed to…
Electron transport in a slot-gate Si MOSFET
I. Shlimak, v. Ginodman, A. Butenko +2
The transversal and longitudinal resistance in the quantum Hall effect regime was measured in a Si MOSFET sample in which a slot-gate allows one to vary the electron density and fi…