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arXiv · 1012.0823

Off-equilibrium relaxational dynamics with improved Ising Hamiltonian

Mario Collura
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Abstract

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 $T=\infty$ to $T_c$. Analysing the off-equilibrium dynamics at $T_c$ we obtain an estimate of the dynamical critical exponent $z=2.020(8)$ that is perfectly consistent with the Field Theory predictions.

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Mario Collura. 2010-12-06. Off-equilibrium relaxational dynamics with improved Ising Hamiltonian. https://doi.org/10.1088/1742-5468%2F2010%2F12%2Fp12036

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