Department of Physics, Tsinghua University, Beijing 100084, China Department of Physics, Tsinghua University, Beijing 100084, China;Institute of Theoretical Physics, Academia Sinica, Beijing 100080, China
Abstract:
Gluon propagator is investigated for pure Yang-Mills SU(3) gauge theory in field-strength approach. It isfound that instantohs provide a homogeneous solid-like medium background which generates finite nonzero momentumgluon propagator and gluon receives effective mass.