Pairing fluctuations and pseudogaps in the attractive Hubbard model
نویسندگان
چکیده
B. Kyung, S. Allen, and A.-M. S. Tremblay Département de Physique and Centre de Recherche sur les Propriétés Électroniques de Matériaux Avancés, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1 Institut Canadien de Recherches Avancées, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1 ~Received 2 October 2000; revised manuscript received 2 March 2001; published 31 July 2001!
منابع مشابه
Charge and Phase Fluctuations in Attractive Hubbard Model
Using the negative U Hubbard model we analyze normal state properties of a superconductor. In this model there exists a characteristic pairing temperature TP above a superconducting critical temperature. Below TP electrons start to form incoherent pairs. The fluctuations in charge and phase are precursors of charge density wave and superconductivity phases depending on band filling. They lead n...
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