THE STUDY OF QUENCHED BOND RANDOMNESS BY WANG–LANDAU ALGORITHM

Fatih Yaşar ()
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Fatih Yaşar: Hacettepe University, Department of Physics Engineering, Ankara, Turkey

International Journal of Modern Physics C (IJMPC), 2007, vol. 18, issue 07, 1107-1117

Abstract: Monte Carlo simulations using the recently proposed Wang–Landau algorithm are performed to theq = 8state Potts model in two dimension with various degrees of randomness. We systematically studied the effect of quenched bond randomness to system which has first-order phase transition. All simulations and measurements were done from pure caser = 1tor = 0.4. Physical quantities such as energy density and ground-state entropy were evaluated at all temperatures. We have also obtained probability distributions of energy to monitor softening of transitions. It appears quite feasible to simulate spin systems with quenched bond randomness by Wang–Landau algorithm.

Keywords: Monte Carlo; Wang–Landau method; Potts model; randomness (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0129183107011169

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