Decorrelating Topology with HMC

Th. Lippert; B. Alles; G. Bali; M. D'Elia; A. Di Giacomo; N. Eicker; S. Guesken; K. Schilling; A. Spitz; T. Struckmann; P. Ueberholz; J. Viehoff

doi:10.1016/s0920-5632(99)85124-x

arXiv · hep-lat/9809034

Decorrelating Topology with HMC

Th. Lippert·B. Alles·G. Bali·M. D'Elia·A. Di Giacomo·N. Eicker·S. Guesken·K. Schilling·A. Spitz·T. Struckmann·P. Ueberholz·J. Viehoff

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Abstract

The investigation of the decorrelation efficiency of the HMC algorithm with respect to vacuum topology is a prerequisite for trustworthy full QCD simulations, in particular for the computation of topology sensitive quantities. We demonstrate that for mpi/mrho ratios <= 0.69 sufficient tunneling between the topological sectors can be achieved, for two flavours of dynamical Wilson fermions close to the scaling region beta=5.6. Our results are based on time series of length 5000 trajectories.

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Th. Lippert, B. Alles, G. Bali, M. D'Elia, A. Di Giacomo, N. Eicker, S. Guesken, K. Schilling, A. Spitz, T. Struckmann, P. Ueberholz, J. Viehoff. 1998-09-09. Decorrelating Topology with HMC. https://doi.org/10.1016/s0920-5632(99)85124-x

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