Speeding up finite step-size updating of full QCD on the lattice
arXiv:hep-lat/9807031 · doi:10.1103/PhysRevD.59.054505
Abstract
We propose various improvements of finite step-size updating for full QCD on the lattice that might turn finite step-size updating into a viable alternative to the hybrid Monte Carlo algorithm. These improvements are noise reduction of the noisy estimator of the fermion determinant, unbiased inclusion of the hopping parameter expansion and a multi-level Metropolis scheme. First numerical tests are performed for the 2 dimensional Schwinger model with two flavours of Wilson fermions and for QCD two flavours of Wilson fermions and Schr"odinger functional boundary conditions.
22 pages, 1 figure
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Cited by in corpus (21)
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- Quenched spectroscopy with fixed-point and chirally improved fermions
- Reweighting towards the chiral limit
- Lattice QCD for Cosmology
- A local factorization of the fermion determinant in lattice QCD
- Lattice QCD and the Schwarz alternating procedure
- Comparative Benchmarks of full QCD Algorithms
- Updating algorithms with multi-step stochastic correction
- Dynamical Fermions with Fat Links
- Simulating Full QCD with the Fixed Point Action
- Evaluating the Fermionic Determinant of Dynamical Configurations
- Simulation of dynamical fermions with smeared links
- Partial-Global Stochastic Metropolis Update for Dynamical Smeared Link Fermions
- Dynamical fermions as a global correction
- Fermions as Global Correction: the QCD Case
- Lattice QCD with Suppressed High Momentum Modes of the Dirac Operator
- Least-Squared Optimized Polynomials for Smeared Link Actions
- Fundamental parameters of QCD
- Exploiting the hopping parameter expansion in the hybrid Monte Carlo (HMC) simulation of lattice QCD with two degenerate flavours of Wilson fermions
- Lattice QCD with light dynamical quarks