Speeding up the hybrid Monte Carlo algorithm for dynamical fermions

@article{Hasenbusch2001SpeedingUT,
  title={Speeding up the hybrid Monte Carlo algorithm for dynamical fermions},
  author={Martin Hasenbusch},
  journal={Physics Letters B},
  year={2001},
  volume={519},
  pages={177-182}
}
Abstract We propose a modification of the hybrid Monte Carlo algorithm that allows for a larger step-size of the integration scheme at constant acceptance rate. The key ingredient is that the pseudo-fermion action is split into two parts. We test our proposal at the example of the two-dimensional lattice Schwinger model with two degenerate flavours of Wilson-fermions. 
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