Gattnar Jochen, Langfeld Kurt, Reinhardt Hugo
Insitut für Theoretische Physik, Universität Tübingen, D-72076, Germany.
Phys Rev Lett. 2004 Aug 6;93(6):061601. doi: 10.1103/PhysRevLett.93.061601.
It has been well established that the removal of center vortices from SU(2) lattice configurations results in the loss of confinement. The running coupling constant, gluon form factor, and ghost form factor are studied in the Landau gauge for the full and the vortex removed theory. In the latter case, a strong suppression of the running coupling constant and the gluon form factor at low momenta is observed, and the IR singularity of the ghost form factor disappears. Hence, the removal of the vortices generates a theory for which Zwanziger's horizon condition for confinement is no longer satisfied.
已经充分证实，从SU(2)晶格构型中移除中心涡旋会导致禁闭的丧失。在朗道规范下，对完整理论和移除涡旋后的理论研究了跑动耦合常数、胶子形状因子和鬼场形状因子。在后一种情况下，观察到低动量下跑动耦合常数和胶子形状因子受到强烈抑制，并且鬼场形状因子的红外奇点消失。因此，涡旋的移除产生了一种不再满足兹万齐格禁闭视界条件的理论。
