Delayed Rejection Variational Monte Carlo

Details Delayed Rejection Variational Monte Carlo Delayed Rejection Variational Monte Carlo

2004-07-20

arxiv.org/abs/cond-mat/0407513v1

Physics

Condensed Matter

Other Condensed Matter

To be published on the Journal of Chemical Physics

Scientific paper

10.1063/1.1775789

A new acceleration algorithm to address the problem of multiple time scales in variational Monte Carlo simulations is presented. After a first attempted move has been rejected, the delayed rejection algorithm attempts a second move with a smaller time step, so that even moves of the core electrons can be accepted. Results on Be and Ne atoms as test cases are presented. Correlation time and both average accepted displacement and acceptance ratio as a function of the distance from the nucleus evidence the efficiency of the proposed algorithm in dealing with the multiple time scales problem.

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