Exact diagonalization approach to correlated fermions in infinite dimensions: Mott transition and superconductivity
Michel Caffarel, Werner Krauth
DOI 10.1103/PhysRevLett.72.1545 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We present a powerful method for calculating the thermodynamic properties of infinite-dimensional Hubbard-type models using an exact diagonalization of an Anderson model with a finite number of sites. The resolution obtained for Green’s functions is far superior to that of quantum Monte Carlo calculations. We apply the method to the half-filled Hubbard model for a discussion of the metal-insulator transition, and to the two-band Hubbard model where we find direct evidence for the existence of a superconducting instability at low temperatures.
Similar papers
Superconductivity in the two-band Hubbard model
similarity 0.92Akihisa Koga & Philipp Werner
Source status unknown — claims are unverified
Quantum metal-superconductor transition: A local field theory approach
similarity 0.90Lubo Zhou & T. R. Kirkpatrick
Source status unknown — claims are unverified
Model of a superconducting phase transition
similarity 0.90H. Chen et al.
Source status unknown — claims are unverified
d-Wave Superconductivity in the Hubbard Model
similarity 0.90Th. Maier et al.
Source status unknown — claims are unverified
Superconductivity and antiferromagnetism in the two-dimensional Hubbard model: A variational study
similarity 0.90D. Eichenberger & D. Baeriswyl
Source status unknown — claims are unverified
Dynamical mean-field theory and numerical renormalization group study of superconductivity in the attractive Hubbard model
similarity 0.90J. Bauer et al.
Source status unknown — claims are unverified