Publication Date:
2020
abstract:
Within the time-dependent Gutzwiller approximation applied to the negative-U Hubbard model, we investigate the dynamics of a superconductor after an interaction quench for different values of the final interaction from weak to strong coupling. The equilibrium BCS-BEC crossover becomes a sharp transition in the out-of-equilibrium dynamics between weak- and strong-coupling dynamical phases. Two different frequencies (?J
Iris type:
01.01 Articolo in rivista
Keywords:
BOSE-EINSTEIN CONDENSATION; MEAN-FIELD THEORY; HIGGS MODE; APPROXIMATION; INSULATOR; SYSTEMS; METAL; GAP
List of contributors:
GARCIA LORENZANA, JOSE' GUILLERMO
Published in: