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cond-mat.str-el1998★ 76 cited
Optical absorption and single-particle excitations in the 2D Holstein t-J model
B. Bäuml, G. Wellein, H. Fehske
To discuss the interplay of electronic and lattice degrees of freedom in systems with strong Coulomb correlations we have performed an extensive numerical study of the two-dimensio…
cond-mat.str-el1997
Dynamical pairing correlations in the t-J model with non-adiabatic hole-phonon coupling
G. Wellein, B. B"auml, H. Fehske
We examine the effects of hole-phonon interaction on the formation of hole pairs in the 2D Holstein t--J model. Using finite-lattice diagonalization techniques, we present exact re…