Instabilities in Molecular Dynamics Integrators used in Hybrid Monte Carlo Simulations
High Energy Physics - Lattice
2007-05-23 v1
Abstract
We discuss an instability in the leapfrog integration algorithm, widely used in current Hybrid Monte Carlo (HMC) simulations of lattice QCD. We demonstrate the instability in the simple harmonic oscillator (SHO) system where it is manifest. We demonstrate the instability in HMC simulations of lattic QCD with dynamical Wilson-Clover fermions and discuss implications for future simulations of lattice QCD.
Cite
@article{arxiv.hep-lat/0110047,
title = {Instabilities in Molecular Dynamics Integrators used in Hybrid Monte Carlo Simulations},
author = {B. Joo and UKQCD Collaboration},
journal= {arXiv preprint arXiv:hep-lat/0110047},
year = {2007}
}
Comments
Lattice2001(algorithms)