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Mean field solutions to singlet hopping and superconducting pairing within a two-band Hubbard model

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Abstract

The mean field Green function solution of the two-band singlet-hole Hubbard model for high-T c superconductivity in cuprates (N.M. Plakida et al., Phys. Rev. B51, 16599 (1995), JETP 97, 331 (2003)) involves expressions of higher order correlation functions describing respectively the singlet hopping and the superconducting pairing. Rigorous derivation of their values is reported based on the finding that specific invariant classes of polynomial Green functions in terms of the Wannier overlap coefficients v ij exist.

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Authors and Affiliations

  1. Laboratory of Information Technologies, Joint Institute for Nuclear Research, Dubna, Moscow Region, 141980, Russia

    S. Adam & Gh. Adam

  2. Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), 407 Atomistilor, Magurele-Bucharest, 077125, Romania

    S. Adam & Gh. Adam

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  1. S. Adam
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  2. Gh. Adam
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The text was submitted by the authors in English.

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Adam, S., Adam, G. Mean field solutions to singlet hopping and superconducting pairing within a two-band Hubbard model. Phys. Part. Nuclei Lett. 5, 263–268 (2008). https://doi.org/10.1134/S1547477108030266

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  • DOI: https://doi.org/10.1134/S1547477108030266

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