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cond-mat1994
Pair fluctuation effects above
J. J. Rodríguez-Núñez, S. Schafroth, R. Micnas +3
We explore the occurrence of pairing effects above in the 2D attractive Hubbard model. The presence of pairs above goes beyond the BCS approximation, in whi…
cond-mat1994
Evidence for a Pseudogap Above the Critical Temperature in the Attractive Hubbard Model
J. J. Rodríguez-Núñez, S. Schafroth, R. Micnas +3
We explore the effect of fluctuations for in the 2-D negative Hubbard model within the framework of the selfconsistent T-matrix formalism, which goes beyond the BCS ap…