The Yang-Mills Spectrum from a 2-level Algorithm
arXiv:hep-lat/0312034 · doi:10.1088/1126-6708/2004/01/030
Abstract
We investigate in detail a 2-level algorithm for the computation of 2-point functions of fuzzy Wilson loops in lattice gauge theory. Its performance and the optimization of its parameters are described in the context of 2+1D SU(2) gluodynamics. In realistic calculations of glueball masses, it is found that the reduction in CPU time for given error bars on the correlator at time-separation ~0.2fm, where a mass-plateau sets in, varies between 1.5 and 7 for the lightest glueballs in the non-trivial symmetry channels; only for the lightest glueball is the 2-level algorithm not helpful. For the heavier states, or for larger time-separations, the gain increases as expected exponentially in (mt). We present further physics applications in 2+1 and 3+1 dimensions and for different gauge groups that confirm these conclusions.
4 tables, 8 figures, 27 pages
References in corpus (11)
- The glueball spectrum from an anisotropic lattice study
- Maximum Entropy Analysis of the Spectral Functions in Lattice QCD
- A comprehensive lattice study of SU(3) glueballs
- Quark confinement and the bosonic string
- SU(N) gauge theories in 2+1 dimensions
- Locality and exponential error reduction in numerical lattice gauge theory
- Confining strings in SU(N) gauge theories
- Spectrum of confining strings in SU(N) gauge theories
- Glueball Regge Trajectories in (2+1) Dimensional Gauge Theories
- Locality and Statistical Error Reduction on Correlation Functions
- Flux-tube structure and beta-functions in SU(2)
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