Basic HTML version of Foils prepared October 22 1997

Foil 76 Simulation of Spin Models of Magnets

From GCF Talk U - Lewis/NASA 3/9/92 Mardi Gras Conference on Concurrent Computing in Physical Sciences -- February 18, 1993. by Geoffrey C. Fox


1 Simple models reproduce quantitative behavior of real magnetic materials with complex interactions
2 Fundamental to the development of the theory of phase transitions and critical phenomena, which has very wide applicability.
3 Computational algorithms and techniques can be applied to other fields, e.g.
  • Monte Carlo simulation of lattice models of quantum field theory and quantum gravity
  • simulation of polymers, proteins, cell membranes
  • simulated annealing and other "physical" methods for global optimization
  • neural networks
  • condensed matter problems, e.g. superconducters
4 Since the models are simple and exact results are known in some cases (e.g. 2-d Ising Model), these are used as a testing ground for new computational techniques, e.g.
  • Monte Carlo Algorithms
  • measurements and data analysis
  • random numbers generators

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