String tension and monopoles in $T\ne 0$ SU(2) QCD

Abstract

Monopole and photon contributions to abelian Wilson loops are calculated using Monte-Carlo simulations of finite-temperature $SU(2)$ QCD in the maximally abelian gauge. Long monopole loops alone are responsible for the behavior of the string tension in the confinement phase up to the critical ${\beta }_c$. Short monopole loops and photons do not contribute to the string tension. The abelian and the monopole spacial string tensions (both of which agree with the normal ones for $\beta <{\beta }_c$) show a $g^4(T)T^2$ scaling behavior in the deconfinement phase. The abelian spacial string tension is in agreement with the full one even in the deconfinement phase.

Comments: 10 Pages + 1 table + 8 figures, KANAZAWA 94-14