448 citations · 2.2k across the 37 of their papers we have counts for
3 papers · 2 filters
d-wave superconductivity near charge instabilities
A. Perali, C. Castellani, C. Di Castro +1
We investigate the symmetry of the superconducting order parameter in the proximity of a phase-separation or of an incommensurate charge-density-wave instability. The attractive ef…
Charge-density-waves and superconductivity as an alternative to phase separation in the infinite-U Hubbard-Holstein model
F. Becca, M. Tarquini, M. Grilli +1
We investigate the density instabilities present in the infinite-U Hubbard-Holstein model both at zero and finite momenta as well as the occurrence of Cooper instabilities with a s…
Infrared Behavior of Interacting Bosons at Zero Temperature
C. Castellani, C. Di Castro, F. Pistolesi +1
We exploit the symmetries associated with the stability of the superfluid phase to solve the long-standing problem of interacting bosons in the presence of a condensate at zero tem…