Write . Up to a total derivative, the covariant-gradient identity and completion of the magnetic and potential terms give
For positive flux, equality in the Bogomolny bound therefore gives the Bogomolny vortex equations
The opposite simultaneous signs describe negative winding.
For the orientation , the Hodge star operator is
Thus
A radial vortex of winding has
with , , , and equations
For , put . Away from zeros, the first vortex equation gives
Since
the field satisfies the Liouville equation
For holomorphic , direct use of the Cauchy-Riemann equations verifies
Choosing gives the radial Witten hyperbolic vortex
For these reduce to
Since ,
This directly verifies the Abelian Higgs vortex flux relation for unit winding.
Away from zeros of , write
The first Bogomolny vortex equation, , gives
If the zeros have multiplicities , the phase curl and the logarithmic singularities give, distributionally,
Equating this with yields the Taubes equation
Choose positions and positive integer multiplicities . Solve the Taubes equation with at infinity and near each position. The planar existence theorem supplies such a solution for every finite multiset of positions; see the original existence theorem. Set , and , with . The singular terms cancel in , while has precisely the selected zeros. These fields satisfy the Bogomolny vortex equations, with . Their vortex number is . Complex conjugation of together with gives antivortices.