Instabilities in molecular dynamics integrators used in Hybrid Monte Carlo simulations

B. Joó

doi:10.1016/S0920-5632(01)01932-6

Instabilities in molecular dynamics integrators used in Hybrid Monte Carlo simulations

B. Joó

Advanced Computing for Nuclear, Particle

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

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 lattice QCD with dynamical Wilson-Clover fermions and discuss implications for future simulations of lattice QCD.

Original language	English
Pages (from-to)	1073-1075
Number of pages	3
Journal	Nuclear Physics B - Proceedings Supplements
Volume	106-107
DOIs	https://doi.org/10.1016/S0920-5632(01)01932-6
State	Published - Mar 2002

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title = "Instabilities in molecular dynamics integrators used in Hybrid Monte Carlo simulations",

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 lattice QCD with dynamical Wilson-Clover fermions and discuss implications for future simulations of lattice QCD.",

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N2 - 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 lattice QCD with dynamical Wilson-Clover fermions and discuss implications for future simulations of lattice QCD.

AB - 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 lattice QCD with dynamical Wilson-Clover fermions and discuss implications for future simulations of lattice QCD.

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U2 - 10.1016/S0920-5632(01)01932-6

DO - 10.1016/S0920-5632(01)01932-6

M3 - Article

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SN - 0920-5632

VL - 106-107

SP - 1073

EP - 1075

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

ER -

Instabilities in molecular dynamics integrators used in Hybrid Monte Carlo simulations

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