Abstrakt
We study autocorrelation times of physical observables in lattice QCD as a function of the molecular dynamics trajectory length in the hybrid Monte-Carlo algorithm. In an interval of trajectory lengths where energy and reversibility violations can be kept under control, we find a variation of the integrated autocorrelation times by a factor of about two in the quantities of interest. Trajectories longer than conventionally used are found to be superior both in the Nf=0 and Nf=2 examples considered here. We also provide evidence that they lead to faster thermalization of systems with light quarks.
Originalsprog | Udefineret/Ukendt |
---|---|
Tidsskrift | Comput.Phys.Commun. |
DOI | |
Status | Udgivet - 2. jun. 2006 |
Bibliografisk note
13 pages, 6 figuresEmneord
- hep-lat