Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1997-09-27
Nucl.Phys.Proc.Suppl. 63 (1998) 513-515
Physics
High Energy Physics
High Energy Physics - Lattice
Talk presented by M. Fukushima at ``Lattice '97'', the International Symposium on Lattice Field Theory, 22 - 26 July 1997, in
Scientific paper
10.1016/S0920-5632(97)00818-9
We investigate the confinement properties in the multi-instanton system, where the size distribution is assumed to be $ \rho^{-5} $ for the large instanton size $ \rho $. We find that the instanton vacuum gives the area law behavior of the Wilson loop, which indicates existence of the linear confining potential. In the multi-instanton system, the string tension increases monotonously with the instanton density, and takes the standard value $ \sigma \simeq 1 GeV/fm $ for the density $ (N/V)^{{1/4}} = 200 MeV $. Thus, instantons directly relate to color confinement properties.
Fukushima Masahiro
Sasaki Shoich
Suganuma Hideo
Tanaka Atsunori
Toki Hiroshi
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