Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1997-05-02
Nucl.Phys. B508 (1997) 353-370
Physics
High Energy Physics
High Energy Physics - Lattice
19 pages, including three figures; minor modifications following referee's suggestions. ZiF-MS-16/97 preprint. To appear in Nu
Scientific paper
10.1016/S0550-3213(97)00629-9
We study the influence of Gribov copies on gluon and ghost propagators, evaluated numerically in pure SU(2) lattice gauge theory in the minimal Landau gauge. Simulations are done at four different values of $\beta$ (namely $\beta$ = 0, 0.8, 1.6 and 2.7) and for volumes up to $16^4$ (up to $24^4$ at $\beta$ = 1.6). For the gluon propagator, Gribov noise seems to be of the order of magnitude of the numerical accuracy, even at very small values of the coupling $\beta$. On the contrary, for the ghost propagator, Gribov noise is clearly observable for the three values of $\beta$ in the strong-coupling regime. In particular, data corresponding to the minimal Landau gauge are always smaller than those obtained in a generic Landau gauge. This result can be qualitatively explained.
No associations
LandOfFree
Gribov Copies in the Minimal Landau Gauge: the Influence on Gluon and Ghost Propagators does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Gribov Copies in the Minimal Landau Gauge: the Influence on Gluon and Ghost Propagators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gribov Copies in the Minimal Landau Gauge: the Influence on Gluon and Ghost Propagators will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-140330