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cond-mat.supr-con1997
Superconducting properties of the attractive Hubbard model
M. H. Pedersen, J. J. Rodriguez-Nunez, H. Beck +2
A self-consistent set of equations for the one-electron self-energy in the ladder approximation is derived for the attractive Hubbard model in the superconducting state. The equati…
cond-mat.supr-con1996
Some Global Properties of the Attractive Hubbard Model in the Superconducting Phase: T-Matrix Approximation in 2D
S. Schafroth, J. J. Rodriguez, H. Beck
We have applied the Fast Fourier transform (FFT), which allows to compute efficiently convolution sums, to solve the set of self-consistent T-matrix equations to get the Green func…