A Multicanonical Monte Carlo Study of the 3D ±J Spin Glass

A Multicanonical Monte Carlo Study of the 3D ±J Spin Glass

A bivariate multicanonical Monte Carlo simulation of the three-dimensional ±J Ising spin glass is described. The correlation time of the Monte Carlo dynamics is approximately proportional to the system size, which is a great improvement over previous spin-glass simulations. The order-parameter distr...

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Veröffentlicht in:Progress of theoretical physics. Supplement 2000-01, Vol.138, p.442-447
Hauptverfasser: Hatano, Naomichi, Gubernatis, James E.
Format: Artikel
Sprache:eng
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Zusammenfassung:A bivariate multicanonical Monte Carlo simulation of the three-dimensional ±J Ising spin glass is described. The correlation time of the Monte Carlo dynamics is approximately proportional to the system size, which is a great improvement over previous spin-glass simulations. The order-parameter distribution function P(q) at T=0.3 exhibits a feature of the droplet picture of the low-temperature phase, as opposed to the mean-field picture.
ISSN:0375-9687
DOI:10.1143/PTPS.138.442