Resonant amplification of magnetic fields from chiral currents in
  spacetimes with torsion
  Resonant amplification of magnetic fields in spacetimes with torsion are
investigated by solving the Heisenberg-Ivanenko nonlinear spinor equation. It
is shown that torsion is helicity dependent and that the magnetic fields can be
resonantly amplified and that the spinor solution leads to an amplification of
the magnetic field dependant of the sign of helicity. The QCD domain wall case
with torsion is also investigated and the results compared with recent results
by Forbes and Zhitnitski (PRL (2001)).
