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cond-mat.str-el2006★ 49 cited
Phase separation in the particle-hole asymmetric Hubbard model
M. Eckstein, M. Kollar, M. Potthoff +1
The paramagnetic phase diagram of the Hubbard model with nearest-neighbor (NN) and next-nearest-neighbor (NNN) hopping on the Bethe lattice is computed at half-filling and in the w…
cond-mat.str-el2006★ 32 cited
Isosbestic points in the spectral function of correlated electrons
M. Eckstein, M. Kollar, D. Vollhardt
We investigate the properties of the spectral function A(omega,U) of correlated electrons within the Hubbard model and dynamical mean-field theory. Curves of A(omega,U) vs. omega f…