168 citations · 334 across the 12 of their papers we have counts for
12 papers
Coherent Bose-Einstein condensation with fluctuating density
L. Salasnich, A. Crisanti, A. Sarracino +1
Bose-Einstein condensation in the grand canonical ensemble admits a formulation in terms of a phase-density decomposition of the condensate mode operator . In the pr…
Macroscopic quantum self-trapping in bosonic Josephson junctions: an exact quantum treatment
Andrea Bardin, Anna Minguzzi, Luca Salasnich
We investigate the fully quantum evolution of the population imbalance in a perfectly symmetric Bose-Josephson junction modeled by a two-mode Bose-Hubbard Hamiltonian, focusing on…
Repulsive fermions and shell effects on the surface of a sphere
Lorenzo Frigato, Andrea Bardin, Luca Salasnich
In recent years, ultracold atomic gases confined in curved geometries have attracted considerable theoretical interest. This is motivated by recent realizations of bubble traps in…
Finite-temperature entanglement and coherence in asymmetric bosonic Josephson junctions
Cesare Vianello, Matteo Ferraretto, Luca Salasnich
We investigate the finite-temperature properties of a bosonic Josephson junction composed of N interacting atoms confined by a quasi-one-dimensional asymmetric double-well potentia…
Strongly interacting bosons in 1D disordered lattice: phase coherence of distorted Mott phases
Barnali Chakrabarti, Arnaldo Gammal, Luca Salasnich
We explore the consequences of disorder on phase coherence in the Mott insulator phases in an optical lattice. Few bosons with contact interaction in small optical lattice can feat…
Canonical vs. Grand Canonical Ensemble for Bosonic Gases under Harmonic Confinement
Andrea Crisanti, Luca Salasnich, Alessandro Sarracino +1
We analyze the general relation between canonical and grand canonical ensembles in the thermodynamic limit. We begin our discussion by deriving, with an alternative approach, some…