Simulating the Schroedinger functional with two pseudo-fermions
arXiv:hep-lat/0307008 · doi:10.1016/S0010-4655(03)00436-3
Abstract
We report on simulations with two flavors of O(a) improved degenerate Wilson fermions with Schroedinger functional boundary conditions. The algorithm which is used is Hybrid Monte Carlo with two pseudo-fermion fields as proposed by M. Hasenbusch. We investigate the numerical precision and sensitivity to reversibility violations of this algorithm. A gain of a factor two in CPU cost is reached compared with one pseudo-fermion field due to the larger possible step-size.
20 pages, 6 figures, changes in section 3, figures 4 and 6 replaced, addition of appendix A
References in corpus (20)
- Chiral symmetry and O(a) improvement in lattice QCD
- Non-perturbative quark mass renormalization in quenched lattice QCD
- Speeding up the Hybrid-Monte-Carlo algorithm for dynamical fermions
- On the Schroedinger functional in QCD
- O(a) improvement of the axial current in lattice QCD to one-loop order of perturbation theory
- O(a) improvement of lattice QCD with two flavors of Wilson quarks
- Further results on O(a) improved lattice QCD to one-loop order of perturbation theory
- Speeding up Lattice QCD simulations with clover-improved Wilson Fermions
- Effects of non-perturbatively improved dynamical fermions in QCD at fixed lattice spacing
- Two Loop Computation of the Schroedinger Functional in Lattice QCD
- First results on the running coupling in QCD with two massless flavours
- Kramers equation algorithm for simulations of QCD with two flavors of Wilson fermions and gauge group SU(2)
- Implementation of Symanzik's Improvement Program for Simulations of Dynamical Wilson Fermions in Lattice QCD
- The PHMC algorithm for simulations of dynamical fermions: I -- description and properties
- Instability in the Molecular Dynamics Step of Hybrid Monte Carlo in Dynamical Fermion Lattice QCD Simulations
- Choice of Integrator in the Hybrid Monte Carlo Algorithm
- The Schroedinger functional coupling in quenched QCD at low energies
- Liapunov Exponents and the Reversibility of Molecular Dynamics Algorithms
- Recent results on the running coupling in QCD with two massless flavours
- Running quark mass in two flavor QCD
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- QCD with light Wilson quarks on fine lattices (I): first experiences and physics results
- Deflation acceleration of lattice QCD simulations
- Non-perturbative renormalization of the axial current with dynamical Wilson fermions
- QCD with light Wilson quarks on fine lattices (II): DD-HMC simulations and data analysis
- On cutoff effects in lattice QCD from short to long distances
- Non-perturbative improvement of quark mass renormalization in two-flavour lattice QCD
- Exploring the HMC trajectory-length dependence of autocorrelation times in lattice QCD
- Heavy Quark Effective Theory computation of the mass of the bottom quark
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- Symanzik improvement of lattice QCD with four flavors of Wilson quarks
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