An Inversion-Relaxation Approach for Sampling Stationary Points of Spin Model Hamiltonians
arXiv:1407.5997 · doi:10.1063/1.4875697
Abstract
Sampling the stationary points of a complicated potential energy landscape is a challenging problem. Here we introduce a sampling method based on relaxation from stationary points of the highest index of the Hessian matrix. We illustrate how this approach can find all the stationary points for potentials or Hamiltonians bounded from above, which includes a large class of important spin models, and we show that it is far more efficient than previous methods. For potentials unbounded from above, the relaxation part of the method is still efficient in finding minima and transition states, which are usually the primary focus of attention for atomistic systems.
arXiv comment6 pages, 2 tables. Published in Journal of Chemical Physics
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