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Multicritical point of the three-dimensional Z_2 gauge Higgs model
Claudio Bonati, Andrea Pelissetto, Ettore Vicari
We investigate the multicritical behavior of the three-dimensional Z_2 gauge Higgs model, at the multicritical point (MCP) of its phase diagram, where one first-order transition li…
Out-of-equilibrium quantum dynamics of fermionic gases in the presence of localized particle loss
Francesco Tarantelli, Ettore Vicari
We address the effects of dissipative defects giving rise to a localized particle loss, in one-dimensional non-interacting lattice fermionic gases confined within a region of size…
Continuum limit of two-dimensional multiflavor scalar gauge theories
Claudio Bonati, Alessio Franchi, Andrea Pelissetto +1
We address the interplay between local and global symmetries by analyzing the continuum limit of two-dimensional multicomponent scalar lattice gauge theories, endowed by non-Abelia…
Breaking the gauge symmetry in lattice gauge-invariant models
Claudio Bonati, Andrea Pelissetto, Ettore Vicari
We consider the role that gauge symmetry breaking terms play on the continuum limit of gauge theories in three dimensions. As a paradigmatic example we consider scalar electrodynam…
Global symmetry breaking in gauge theories: the case of multiflavor scalar chromodynamics
Claudio Bonati, Andrea Pelissetto, Ettore Vicari
Universal features of continuous phase transitions can be investigated by studying the field theory with the corresponding global symmetry breaking pattern. When gauge symmet…
Phase diagram and Higgs phases of 3D lattice SU(Nc) gauge theories with multiparameter scalar potentials
Claudio Bonati, Alessio Franchi, Andrea Pelissetto +1
We consider three-dimensional lattice SU(Nc) gauge theories with degenerate multicomponent (Nf>1) complex scalar fields that transform under the fundamental representation of the g…
Three-dimensional lattice SU() gauge theories with multiflavor scalar fields in the adjoint representation
Claudio Bonati, Alessio Franchi, Andrea Pelissetto +1
We consider three-dimensional lattice SU() gauge theories with multiflavor () scalar fields in the adjoint representation. We investigate their phase diagram, identify…
Lattice gauge theories in the presence of a linear gauge-symmetry breaking
Claudio Bonati, Andrea Pelissetto, Ettore Vicari
We study the effects of gauge-symmetry breaking (GSB) perturbations in three-dimensional lattice gauge theories with scalar fields. We study this issue at transitions in which gaug…
Quantum critical systems with dissipative boundaries
Francesco Tarantelli, Ettore Vicari
We study the effects of dissipative boundaries in many-body systems at continuous quantum transitions, when the parameters of the Hamiltonian driving the unitary dynamics are close…
Breaking of the gauge symmetry in lattice gauge theories
Claudio Bonati, Andrea Pelissetto, Ettore Vicari
We study perturbations that break gauge symmetries in lattice gauge theories. As a paradigmatic model, we consider the three-dimensional Abelian-Higgs (AH) model with an N-componen…
Two-dimensional lattice SU() gauge theories with multiflavor adjoint scalar fields
Claudio Bonati, Alessio Franchi, Andrea Pelissetto +1
We consider two-dimensional lattice SU() gauge theories with real scalar fields transforming in the adjoint representation of the gauge group and with a global O()…
Coherent and dissipative dynamics at quantum phase transitions
Davide Rossini, Ettore Vicari
The many-body physics at quantum phase transitions shows a subtle interplay between quantum and thermal fluctuations, emerging in the low-temperature limit. In this review, we firs…