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Showing 1994Show all
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cond-mat1994★ 6 cited
Crossover from Spin-Density-Wave to Neel-like Ground state
Jaime Ferrer
The characterization and evolution of a Spin Density Wave into the Quantum Neel ground state is considered in the context of a weak coupling theory of the half-filled Hubbard model…
cond-mat1994★ 3 cited
Bosonization on the lattice: the emergence of the higher harmonics
Jaime Ferrer, J. González, M. -A. Martín-Delgado
A general and transparent procedure to bosonize fermions placed on a lattice is presented. Harmonics higher than are shown to appear in the one-paticle Green function, due to…