Superconductivity fluctuations in a one-dimensional two-band electron-phonon model with strong repulsive interactions

  • S. I. Matveenko
  • A. R. Bishop
  • A. V. Balatsky


We study a one-dimensional, two-band model with short-range electron-electron repulsions (onsite U and nearest-neighbor V terms) and electron-phonon coupling. We show that there is a region of U, V and band filling in which singlet superconductivity fluctuations are dominant. This region is absent without electron-phonon interactions and includes large values of U and V.


Spectroscopy State Physics Field Theory Elementary Particle Quantum Field Theory 
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Copyright information

© American Institute of Physics 1997

Authors and Affiliations

  • S. I. Matveenko
    • 1
  • A. R. Bishop
    • 2
  • A. V. Balatsky
    • 3
    • 4
  1. 1.Landau Institute for Theoretical PhysicsMoscowRussia
  2. 2.Theoretical DivisionLos Alamos National LaboratoryLos AlamosUSA
  3. 3.Landau Institute for Theoretical PhysicsMoscowRussia
  4. 4.Theoretical DivisionLos Alamos National LaboratoryLos AlamosUSA

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