  We apply the Callan-Harvey anomaly inflow mechanism to the study of QCD
(chromoelectric) flux tubes, quark (pair)-creation and chiral magnetic effect,
using new variables from the Cho-Faddeev-Niemi decomposition of the gauge
potential. A phenomenological description of chromoelectric flux tubes is
obtained by studying a gauged Nambu-Jona-Lasinio effective Lagrangian, derived
from the original QCD Lagrangian. At the quantum level, quark condensates in
the QCD vacuum may form a vortex-like structure in a chromoelectric flux tube.
Quark zero modes trapped in the vortex are chiral and lead to a two-dimensional
gauge anomaly. To cancel it an effective Chern-Simons coupling is needed and
hence a topological charge density term naturally appears.
