Response to Greiter's Comment

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Greiter claimed erroneously that the pi-excitation of the Hubbard model has an energy of the order of U. This mistake originates from a inconsistent treatment of the two particle Hartree energy and the Hartee correction to the chemical potential. In any self-consistent calculations, these two contributions cancel exactly, as shown by Kohn, Luttinger and Ward. We also show that his interpretation of the finite-size studies is inconsistent.
3 pages, Latex2e

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/148722

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9705191
 http://arxiv.org/abs/cond-mat/9705191

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arXiv