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cond-mat.supr-con1998
Overscreening in Hubbard electron systems
H. -B. Schüttler, C. Gröber, H. G. Evertz +1
We show that doping-induced charge fluctuations in strongly correlated Hubbard electron systems near the 1/2-filled, insulating limit cause overscreening of the electron-electron C…
cond-mat.str-el1998
Transport Properties of One-Dimensional Hubbard Models
S. Kirchner, H. G. Evertz, W. Hanke
We present results for the zero and finite temperature Drude weight D(T) and for the Meissner fraction of the attractive and the repulsive Hubbard model, as well as for the model w…