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Authors = Raymond Clay

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35 pages, 533 KiB  
Article
First Principles Methods: A Perspective from Quantum Monte Carlo
by Miguel A. Morales, Raymond Clay, Carlo Pierleoni and David M. Ceperley
Entropy 2014, 16(1), 287-321; https://doi.org/10.3390/e16010287 - 30 Dec 2013
Cited by 39 | Viewed by 11228
Abstract
Quantum Monte Carlo methods are among the most accurate algorithms for predicting properties of general quantum systems. We briefly introduce ground state, path integral at finite temperature and coupled electron-ion Monte Carlo methods, their merits and limitations. We then discuss recent calculations using [...] Read more.
Quantum Monte Carlo methods are among the most accurate algorithms for predicting properties of general quantum systems. We briefly introduce ground state, path integral at finite temperature and coupled electron-ion Monte Carlo methods, their merits and limitations. We then discuss recent calculations using these methods for dense liquid hydrogen as it undergoes a molecular/atomic (metal/insulator) transition. We then discuss a procedure that can be used to assess electronic density functionals, which in turn can be used on a larger scale for first principles calculations and apply this technique to dense hydrogen and liquid water. Full article
(This article belongs to the Special Issue Molecular Dynamics Simulation)
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