HELP! * GREY=local LOCAL HTML version of Foils prepared 15 March 1996

Foil 9 Case Study I) Topics -- Basic Algorithms and Application to the Ising Model

From Master set for Overview of Case Studies of Computational Science CPSP713 Master for Overview -- Autumn Semester 1994. by Geoffrey C. Fox * See also color IMAGE

A: Why Statistical Processes can be used to describe Nature with examples
T: Monte Carlo Integration (review from CPS615)
A: Introduction to Spin Models with the Ising model (an array of two component, up and down, entities) as simplest example
A: Phase Transitions as a pervasive property of systems and common focus of statistical physics computations
  • Ice -- Water transition is a typical physics phase transition
  • Breakup of Eastern Europe in 1990 is example of phase transition in a "complex system"
C: Use of Monte Carlo Methods in Statistical Physics
  • T: Importance Sampling -- general method of improving efficiency of computation
  • T: Markov Chains
  • A: Detailed balance as property of equilibrium in physical system
  • T: Metropolis Algorithm -- excellent importance sampling needed since incredibly peaked functions found in statistical physics Monte Carlo integrals.



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