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Cumulant approach to the Anderson impurity model

✍ Scribed by G. Polatsek; K.W. Becker; V. Zevin


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
184 KB
Volume
169
Category
Article
ISSN
0921-4526

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Cumulant approach to the coherent hole m
✍ K.W. Becker; R. Eder; H. Won πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 269 KB

We discuss the motion of a hole generated in the Cu -0 plane in high temperature superconductors at half-t~Aling. The system is described by the t -J model. It is shown that spin fluctuations in the ground state reduce the bandwidth of the excitation energy as compared to the motion within the N6el