Full QCD Algorithms towards the Chiral Limit
arXiv:hep-lat/0310029 · doi:10.1016/S0920-5632(03)02504-0
Abstract
I discuss the behaviour of algorithms for dynamical fermions as the sea-quark mass decreases. I focus on the Hybrid-Monte-Carlo (HMC) algorithm applied to two degenerate flavours of Wilson fermions. First, I briefly review the performance obtained in large scale HMC simulations. Then I discuss a modified pseudo-fermion action for the HMC simulation that has been introduced three years ago. I summarize recent results obtained with this pseudo-fermion action by the QCDSF and the ALPHA collaborations. I comment on alternatives to the HMC, like the Multiboson algorithm and variants of it.
7 pages, Lattice 2003 plenary talk, typos corrected, references updated, discussion of the MB algorithm corrected/extended
References in corpus (9)
- Speeding up the Hybrid-Monte-Carlo algorithm for dynamical fermions
- Light Hadron Spectroscopy with Two Flavors of Dynamical Quarks on the Lattice
- Speeding up Lattice QCD simulations with clover-improved Wilson Fermions
- Lattice QCD and the Schwarz alternating procedure
- Accelerating the Hybrid Monte Carlo algorithm
- Panel discussion on chiral extrapolation of physical observables
- Multiple molecular dynamics time-scales in Hybrid Monte Carlo fermion simulations
- Progress in lattice algorithms
- Cost of QCD simulations with n_f=2 dynamical Wilson fermions
Cited by in corpus (5)
- tmLQCD: a program suite to simulate Wilson Twisted mass Lattice QCD
- Improved Wilson QCD simulations with light quark masses
- Non-perturbatively renormalised light quark masses from a lattice simulation with N_f=2
- Lattice QCD at the end of 2003
- Phase structure of thermal lattice QCD with N_f=2 twisted mass Wilson fermions