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13 papers · 1 filter
Electronic transport and the localization length in the quantum Hall effect
M. Furlan
We report on recent experimental results from transport measurements with large Hall bars made of high mobility GaAs/AlGaAs heterostructures. Thermally activated conductivities and…
Enhanced Electron-Phonon Coupling and its Irrelevance to High T Superconductivity
T. P. Devereaux, A. Virosztek, A. Zawadowski +10
It is argued that the origin of the buckling of the CuO planes in certain cuprates as well as the strong electron-phonon coupling of the phonon is due to the electri…
Spin and energy correlations in the one dimensional spin 1/2 Heisenberg model
F. Naef, X. Zotos
In this paper, we study the spin and energy dynamic correlations of the one dimensional spin 1/2 Heisenberg model, using mostly exact diagonalization numerical techniques. In parti…
Mesoscopic quantum circuit theory to the persistent current and Coulomb blockade
You-Quan Li
The quantum theory for mesoscopic electric circuit is briefly described. The uncertainty relation for electric charge and current modifies the tranditional Heisenberg uncertainty r…
The Hubbard quantum wire
You-Quan Li, Christian Gruber
By introducing a boundary condition for the quantum wire, the Hubbard model is solved exactly by means of Bethe ansatz. The wave function for the bounded state is clearly defined,…
Exact results for a Kondo impurity with electronic correlations
You-Quan Li, Pierre-Antoine Bares
An one dimensional model of a Kondo impurity with arbitrary spin in the presence of electronic correlations is solved exactly. The Bethe ansatz equations are obtained for the case…