Effective Abelian-Higgs theory from SU(2) gauge field theory

摘要

In the present work we show that it is possible to arrive at. a Ginzburg-Landau (GL) like equation from pure SU(2) gauge theory. This has a connection to the dual superconducting model for color confinement where color flux tubes permanently bind quarks into color neutral states. The GL Lagrangian with a spontaneous symmetry breaking potential, has such (Nielsen-Olesen) flux tube solutions. The spontaneous symmetry breaking requires a tachyonic mass for the effective scalar field. Such a tarchyonic mass term is obtained from the condensation of ghost fields.