Finite Temperature and Density Effect on Symmetry Breaking by Wilson   Loops
  A finite temperature and density effect of Wilson loop elements on non-simply connected space is investigated in the model suggested by Hosotani. Using one-loop calculations it is shown that the value of an "order parameter" does not shift as the temperature grows. We find that finite density effect is of much importance for restoration of symmetry. 
Kiyoshi Shiraishi
hep-th