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U.S. Department of Energy
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Topics in computer simulations of statistical systems

Thesis/Dissertation ·
OSTI ID:5584353
Several computer simulations studying a variety of topics in statistical mechanics and lattice gauge theories are performed. The first study describes a Monte Carlo simulation performed on Ising systems defined on Sierpinsky carpets of dimensions between one and four. The critical coupling and the exponent ..gamma.. are measured as a function of dimension. The Ising gauge theory in d = 4 - epsilon, for epsilon ..-->.. 0/sup +/, is then studied by performing a Monte Carlo simulation for the theory defined on fractals. A high statistics Monte Carlo simulation for the three-dimensional Ising model is presented for lattices of sizes 8/sup 3/ to 44/sup 3/. All the data obtained agrees completely, within statistical errors, with the forms predicted by finite-sizing scaling. Finally, a method to estimate numerically the partition function of statistical systems is developed.
Research Organization:
Florida State Univ., Tallahassee (USA)
OSTI ID:
5584353
Country of Publication:
United States
Language:
English