75 citations · 301 across the 10 of their papers we have counts for
10 papers
Entanglement between pairing and screening in the Gorkov-Melik-Barkhudarov correction to the critical temperature throughout the BCS-BEC crossover
L. Pisani, A. Perali, P. Pieri +1
The theoretical description of the critical temperature Tc of a Fermi superfluid dates back to the work by Gor'kov and Melik-Barkhudarov (GMB), who addressed it for a weakly-couple…
Mass imbalance effect in resonant Bose-Fermi mixtures
E. Fratini, P. Pieri
We consider a homogeneous Bose-Fermi mixture, with the boson-fermion interaction tuned by a Fano-Feshbach resonance, in the presence of mass and density imbalance between the two s…
Dispersions, weights, and widths of the single-particle spectral function in the normal phase of a Fermi gas
F. Palestini, A. Perali, P. Pieri +1
The dispersions, weights, and widths of the peaks of the single-particle spectral function in the presence of pair correlations, for a Fermi gas with either attractive or repulsive…
Stability of Sarma phases in density imbalanced electron-hole bilayer systems
A. L. Subasi, P. Pieri, G. Senatore +1
We study excitonic condensation in an electron-hole bilayer system with unequal layer densities at zero temperature. Using mean-field theory we solve the BCS gap equations numerica…
Two-dimensional dilute Bose gas in the normal phase
P. Pieri, G. C. Strinati, I. Tifrea
We consider a two-dimensional dilute Bose gas above its superfluid transition temperature. We show that the t-matrix approximation corresponds to the leading set of diagrams in the…
Spin Chains in an External Magnetic Field. Closure of the Haldane Gap and Effective Field Theories
L. Campos Venuti, E. Ercolessi, G. Morandi +2
We investigate both numerically and analytically the behaviour of a spin-1 antiferromagnetic (AFM) isotropic Heisenberg chain in an external magnetic field. Extensive DMRG studies…