  We propose a scheme to create monopoles with half-integer magnetic charges in
a spinful cold atom system. With a minimal monopole in the center, we derive
the ground-state single-vortex wave function on the sphere and develop the
vortex's kinematic equation in the presence of an external electromagnetic
field. The vortex's trajectory is generally depicted by the precession of the
system. We further formulate the inter-vortex interaction and build up a theory
of multi-vortex dynamics in high-charge monopole systems. We predict the
vortices'trajectory in the bi-vortex system and figure out stable vortex (line)
patterns in multi-vortex systems. Our study provides deep insights into
properties of magnetic monopoles and vortices and paves the way for
experimental verification.
