175 citations · 2.3k across the 50 of their papers we have counts for
6 papers · 1 filter
Two-gap model for underdoped cuprate superconductors
A. Perali, C. Castellani, C. Di Castro +3
Various properties of underdoped superconducting cuprates, including the momentum-dependent pseudogap opening, indicate a behavior which is neither BCS nor Bose-Einstein condensati…
Kosterlitz-Thouless vs Ginzburg-Landau description of 2D superconducting fluctuations
L. Benfatto, A. Perali, C. Castellani +1
We evaluate the charge and spin susceptibilities of the 2D attractive Hubbard model and we compare our results with Montecarlo simulations on the same model. We discuss the possibi…
Spectral properties of incommensurate charge-density wave systems
G. Seibold, F. Becca, F. Bucci +3
The concept of frustrated phase separation is applied to investigate its consequences for the electronic structure of the high T_c cuprates. The resulting incommensurate charge den…
Non-linear conductivity and quantum interference in disordered metals
M. Leadbeater, R. Raimondi, P. Schwab +1
We report on a novel non-linear electric field effect in the conductivity of disordered conductors. We find that an electric field gives rise to dephasing in the particle-hole chan…
Non-linear effects and dephasing in disordered electron systems
R. Raimondi, P. Schwab, C. Castellani
The calculation of the dephasing time in electron systems is presented. By means of the Keldysh formalism we discuss in a unifying way both weak localization and interaction effect…
Effective action for Superconductors and BCS-Bose crossover
S. De Palo, C. Castellani, C. Di Castro +1
A standard perturbative expansion around the mean-field solution is used to derive the low-energy effective action for superconductors at T=0. Taking into account the density fluct…