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The three-dimensional gauge-glass model
Vincenzo Alba, Ettore Vicari
We investigate the temperature-disorder (T-S) phase diagram of a three-dimensional gauge glass model, which is a cubic-lattice nearest-neighbor XY model with quenched random phase…
Quasi-long-range order in trapped systems
Federico Crecchi, Ettore Vicari
We investigate the effects of a trapping space-dependent potential on the low-temperature quasi-long-range order phase of two-dimensional particle systems with a relevant U(1) symm…
Equilibrium and off-equilibrium trap-size scaling in 1D ultracold bosonic gases
Massimo Campostrini, Ettore Vicari
We study some aspects of equilibrium and off equilibrium quantum dynamics of dilute bosonic gases in the presence of a trapping potential. We consider systems with a fixed number o…
Universality of the glassy transitions in the two-dimensional +- J Ising model
Francesco Parisen Toldin, Andrea Pelissetto, Ettore Vicari
We investigate the zero-temperature glassy transitions in the square-lattice +- J Ising model, with bond distribution ; p=1 and p…
Scaling of bipartite entanglement in one-dimensional lattice systems with a trapping potential
Massimo Campostrini, Ettore Vicari
We study the effects of a power-law trapping potential on the scaling behaviour of the entanglement at the quantum critical point of one-dimensional (1D) lattice particle systems.…
Quantum critical behavior and trap-size scaling of trapped bosons in a one-dimensional optical lattice
Massimo Campostrini, Ettore Vicari
We study the quantum (zero-temperature) critical behaviors of confined particle systems described by the one-dimensional (1D) Bose-Hubbard model in the presence of a confining pote…