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Off-equilibrium scaling behaviors driven by time-dependent external fields in three-dimensional O(N) vector models
Andrea Pelissetto, Ettore Vicari
We consider the dynamical off-equilibrium behavior of the three-dimensional O vector model in the presence of a slowly-varying time-dependent spatially-uniform magnetic field…
Off-equilibrium finite-size method for critical behavior analyses
Matteo Lulli, Giorgio Parisi, Andrea Pelissetto
We present a new dynamic off-equilibrium method for the study of continuous transitions, which represents a dynamic generalization of the usual equilibrium cumulant method. Its mai…
Critical mass renormalization in renormalized phi4 theories in two and three dimensions
Andrea Pelissetto, Ettore Vicari
We consider the O(N)-symmetric phi4 theory in two and three dimensions and determine the nonperturbative mass renormalization needed to obtain the phi4 continuum theory. The requir…
Quantum Ising chains with boundary fields
Massimo Campostrini, Andrea Pelissetto, Ettore Vicari
We present a detailed study of the finite one-dimensional quantum Ising chain in a transverse field in the presence of boundary magnetic fields coupled with the order-parameter spi…
Bose-Einstein condensation and critical behavior of two-component bosonic gases
Giacomo Ceccarelli, Jacopo Nespolo, Andrea Pelissetto +1
We study Bose-Einstein condensation (BEC) in three-dimensional two-component bosonic gases, characterizing the universal behaviors of the critical modes arising at the BEC transiti…
Getting the Lorentz transformations without requiring an invariant speed
A. Pelissetto, M. Testa
The structure of the Lorentz transformations follows purely from the absence of privileged inertial reference frames and the group structure (closure under composition) of the tran…
Three-dimensional antiferromagnetic CP(N-1) models
Francesco Delfino, Andrea Pelissetto, Ettore Vicari
We investigate the critical behavior of three-dimensional antiferromagnetic CP(N-1) [ACP(N-1)] models in cubic lattices, which are characterized by a global U(N) symmetry and a loc…
Integral-equation analysis of single-site coarse-grained models for polymer-colloid mixtures
Roberto Menichetti, Andrea Pelissetto, Giuseppe D'Adamo +1
We discuss the reliability of integral-equation methods based on several commonly used closure relations in determining the phase diagram of coarse-grained models of soft-matter sy…
Quantum transitions driven by one-bond defects in quantum Ising rings
Massimo Campostrini, Andrea Pelissetto, Ettore Vicari
We investigate quantum scaling phenomena driven by lower-dimensional defects in quantum Ising-like models. We consider quantum Ising rings in the presence of a bond defect. In the…
Coarse-graining polymer solutions: a critical appraisal of single- and multi-site models
Giuseppe D'Adamo, Roberto Menichetti, Andrea Pelissetto +1
We critically discuss and review the general ideas behind single- and multi-site coarse-grained (CG) models as applied to macromolecular solutions in the dilute and semi-dilute reg…