  It has long argued that confinement in non-Abelian gauge theories, such as
QCD, can be account for by analogy with typed II superconductivity. In this
paper, we show that it is possible to arrive at an effective dual Abelian-Higgs
model, the dual and relativistic version of Ginzburg-Landau model for
superconductor, from SU(2) Yang-Mills theory based on the Faddeev-Niemi
connection decomposition and the order-disorder assumptions for the gauge
field. The implication of these assumptions is discussed and role of the
resulted scalar field is analyzed associated with the "electric-magnetic"
duality and theory vacuum. It is shown that the mass generation of the gauge
vector field can arise from quantum fluctuation of the coset basis variable
$\partial \mathbf{n}$, and the mass of the "electric" field is approximately
equal to that of the scalar particle. A generalized dual London equation with
topologically quantized singular vortices is derived for the static "electric"
field from the our dual model.
