Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015] Année : 2003

Cluster Monte Carlo Algorithm for the Quantum Rotor Model

Erik S. Sorensen
  • Fonction : Auteur

Résumé

We propose a highly efficient \"worm\" like cluster Monte Carlo algorithm for the quantum rotor model in the link-current representation. We explicitly prove detailed balance for the new algorithm even in the presence of disorder. For the pure quantum rotor model with $\\mu=0$ the new algorithm yields high precision estimates for the critical point $K_c=0.33305(5)$ and the correlation length exponent $\\nu=0.670(3)$. For the disordered case, $\\mu=1/2 \\pm 1/2$, we find $\\nu=1.15(10)$.

Dates et versions

hal-00009299 , version 1 (30-09-2005)

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Fabien Alet, Erik S. Sorensen. Cluster Monte Carlo Algorithm for the Quantum Rotor Model. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2003, 67, pp.015701. ⟨10.1103/PhysRevE.67.015701⟩. ⟨hal-00009299⟩
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