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19992005
most citedThe Optical conductivity resonance from an exact description of the electronic states around the Fermi energy

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cond-mat1999

Analysis of the approximations used in the van Hove-BCS theory

D. Quesada, A. Rubio-Ponce, R. Pena +2

An analysis of the different approaches used within the van Hove BCS model for the high temperature superconductors has been done. How far the employment of an asymptotic expressio…