Monte Carlo - Washington University in St. Louis · 2014. 4. 1. · Monte Carlo Pros/Cons...
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System will preferentially populate the lowest energy states Monte Carlo Quantity of interest:
Transcript of Monte Carlo - Washington University in St. Louis · 2014. 4. 1. · Monte Carlo Pros/Cons...
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System will preferentially populate the lowest energy states
Monte Carlo
Quantity of interest:
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Metropolis Monte Carlo
© G. Matthias Ullmann
• Rigorous canonical sampling• Produces Boltzmann weighted populations:
• information about equilibrium states• easy to implement
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Monte Carlo Pros/Cons
Simulation involves random trial steps. (Analogy with gambling, hence the name Monte Carlo)
Pros:• does not require a continuous energy function (as in MD)• number of particles can easily vary (very hard in MD)
Cons:• highly correlated movements are hard to simulate, leads to a poor sampling of large-scale changes
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A Simple “Biased” Monte Carlo Conformational Search
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