An intersecting D3-D3' system contains magnetic monopole solutions due to D-
strings stretched between two branes. These magnetic charges satisfy the usual
Dirac quantization relation. We show that this quantization condition can also
be obtained directly by SUSY and gauge invariance arguments of the theory and
conclude that the independence of physics from a shift of holonomy is exactly
equivalent to regarding a {\it Fayet-Iliopoulos (FI) gauge} for our set-up. So
we are led to conjecture that there is a correspondence between the topological
point of view of magnetic charges and SYM considerations of their theories.
This picture implies that one can attribute a definite quantity to the
integration of the vector multiplet over the singular region such that we can
identify it with magnetic flux. It also indicates that the FI parameter is
proportional to the magnetic charge so it is a quantized number.Comment: 11 pages, minor changes, published versio
