270 citations · 1.1k across the 34 of their papers we have counts for
8 papers · 1 filter
Fixed point stability and decay of correlations
Ettore Vicari, Jean Zinn-Justin
In the framework of the renormalization-group theory of critical phenomena, a quantitative description of many continuous phase transitions can be obtained by considering an effect…
The spectrum of SU(N) gauge theories at nonzero theta
Luigi Del Debbio, Gian Mario Manca, Haralambos Panagopoulos +2
We study the theta dependence of the spectrum of four-dimensional SU(N) gauge theories, where theta is the coefficient of the topological term in the Lagrangian, for N>=3 and in th…
Comment on "Spurious fixed points in frustrated magnets," cond-mat/0609285
Andrea Pelissetto, Ettore Vicari
We critically discuss the arguments reported in cond-mat/0609285 by B. Delamotte, Yu. Holovatch, D. Ivaneyko, D. Mouhanna, and M. Tissier. We show that their conclusions are not th…
The random-anisotropy model in the strong-anisotropy limit
Francesco Parisen Toldin, Andrea Pelissetto, Ettore Vicari
We investigate the nature of the critical behaviour of the random-anisotropy Heisenberg model (RAM), which describes a magnetic system with random uniaxial single-site anisotropy,…
Critical behavior of the random-anisotropy model in the strong-anisotropy limit
Francesco Parisen Toldin, Andrea Pelissetto, Ettore Vicari
We investigate the nature of the critical behavior of the random-anisotropy Heisenberg model (RAM), which describes a magnetic system with random uniaxial single-site anisotropy, s…
The critical exponents of the superfluid transition in He4
Massimo Campostrini, Martin Hasenbusch, Andrea Pelissetto +1
We improve the theoretical estimates of the critical exponents for the three-dimensional XY universality class, which apply to the superfluid transition in He4 along the lambda-lin…