# Groupe de Physique Statistique

## Equipe 106, Institut Jean Lamour

 •  •  •  •  •

### Articles dans des revues à comité de lecture

 Off-equilibrium relaxational dynamics with an improved Ising Hamiltonian Collura M. J. Stat. Mech. (2010) P12036 DOI : 10.1088/1742-5468/2010/12/P12036 ArXiv : arxiv:1012.0823 [PDF] We study the off-equilibrium relaxational dynamics at criticality in the three-dimensional Blume-Capel model whose static critical behaviour belongs to the 3d-Ising universality class. Using "improved" Hamiltonian (the leading corrections to scaling have vanishing amplitude) we perform Monte Carlo simulations of the relaxational dynamics after a quench from ${\footnotesize T=\infty}$ to ${\footnotesize T_c}$. Analysing the off-equilibrium dynamics at ${\footnotesize T_c}$ we obtain an estimate of the dynamical critical exponent ${\footnotesize z=2.020(8)}$ that is perfectly consistent with the Field Theory predictions.