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4 papers · 2 filters
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…
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…
Parity-locking effect in a strongly-correlated ring
C. A. Stafford, D. F. Wang
Orbital magnetism in an integrable model of a multichannel ring with long-ranged electron-electron interactions is investigated. In a noninteracting multichannel system, the respon…