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Large-N behavior of three-dimensional lattice CP(N-1) models
Andrea Pelissetto, Ettore Vicari
We investigate the phase diagram and critical behavior of a three-dimensional lattice CP(N-1) model in the large-N limit. Numerical evidence of first-order transitions is always ob…
Two-dimensional multicomponent Abelian-Higgs lattice models
Claudio Bonati, Andrea Pelissetto, Ettore Vicari
We study the two-dimensional lattice multicomponent Abelian-Higgs model, which is a lattice compact U(1) gauge theory coupled with an N-component complex scalar field, characterize…
Phase diagram, symmetry breaking, and critical behavior of three-dimensional lattice multiflavor scalar chromodynamics
Claudio Bonati, Andrea Pelissetto, Ettore Vicari
We study the nature of the phase diagram of three-dimensional lattice models in the presence of nonabelian gauge symmetries. In particular, we consider a paradigmatic model for the…
Multicomponent compact Abelian-Higgs lattice models
Andrea Pelissetto, Ettore Vicari
We investigate the phase diagram and critical behavior of three-dimensional multicomponent Abelian-Higgs models, in which an N-component complex field z_x^a of unit length and char…
Scaling behavior of the stationary states arising from dissipation at continuous quantum transitions
Davide Rossini, Ettore Vicari
We study the critical behavior of the nonequilibrium dynamics and of the steady states emerging from the competition between coherent and dissipative dynamics close to quantum phas…
Competing coherent and dissipative dynamics close to quantum criticality
Davide Nigro, Davide Rossini, Ettore Vicari
We investigate the competition of coherent and dissipative dynamics in many-body systems at continuous quantum transitions. We consider dissipative mechanisms that can be effective…
Three-dimensional ferromagnetic CP(N-1) models
Andrea Pelissetto, Ettore Vicari
We investigate the critical behavior of three-dimensional ferromagnetic CP(N-1) models, which are characterized by a global U(N) and a local U(1) symmetry. We perform numerical sim…
Scaling of decoherence and energy flow in interacting quantum spin systems
Davide Rossini, Ettore Vicari
We address the quantum dynamics of a system composed of a qubit globally coupled to a many-body system characterized by short-range interactions. We employ a dynamic finite-size sc…
Particle-number scaling of the quantum work statistics and Loschmidt echo in Fermi gases with time-dependent traps
Ettore Vicari
We investigate the particle-number dependence of some features of the out-of-equilibrium dynamics of d-dimensional Fermi gases in the dilute regime. We consider protocols entailing…