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Strong-disorder paramagnetic-ferromagnetic fixed point in the square-lattice +- J Ising model
F. Parisen Toldin, A. Pelissetto, E. Vicari
We consider the random-bond +- J Ising model on a square lattice as a function of the temperature T and of the disorder parameter p (p=1 corresponds to the pure Ising model). We in…
Critical and multicritical behavior of the +- J Ising model in two and three dimensions
Martin Hasenbusch, Francesco Parisen Toldin, Andrea Pelissetto +1
We report our Monte Carlo results on the critical and multicritical behavior of the +- J Ising model [with a random-exchange probability P(J_{xy}) = p δ(J_{xy} - J) + (1-p) δ(J_{xy…
The critical behavior of three-dimensional Ising spin glass models
Martin Hasenbusch, Andrea Pelissetto, Ettore Vicari
We perform high-statistics Monte Carlo simulations of three-dimensional Ising spin-glass models on cubic lattices of size L: the +- J (Edwards-Anderson) Ising model for two values…
Universal dependence on disorder of 2D randomly diluted and random-bond +-J Ising models
M. Hasenbusch, F. Parisen Toldin, A. Pelissetto +1
We consider the two-dimensional randomly site diluted Ising model and the random-bond +-J Ising model (also called Edwards-Anderson model), and study their critical behavior at the…
Multicritical Nishimori point in the phase diagram of the +- J Ising model on a square lattice
Martin Hasenbusch, Francesco Parisen Toldin, Andrea Pelissetto +1
We investigate the critical behavior of the random-bond +- J Ising model on a square lattice at the multicritical Nishimori point in the T-p phase diagram, where T is the temperatu…
Third virial coefficient for 4-arm and 6-arm star polymers
Sergio Caracciolo, Bortolo Matteo Mognetti, Andrea Pelissetto
We discuss the computation of the third virial coefficient in polymer systems, focusing on an additional contribution absent in the case of monoatomic fluids. We determine the inte…
Nodal quasiparticles and the onset of spin density wave order in the cuprates
Andrea Pelissetto, Subir Sachdev, Ettore Vicari
We present a theory for the onset of spin density wave order in the superconducting ground state of the cuprates. We compute the scaling dimensions of allowed perturbations of a `r…