  The D3/D7 system holographically describes an N=2 gauge theory which
spontaneously breaks a chiral symmetry by the formation of a quark condensate
in the presence of a magnetic field. At finite temperature it displays a first
order phase transition. We study out of equilibrium dynamics associated with
this transition by placing probe D7 branes in a geometry describing a
boost-invariant expanding or contracting plasma. We use an adiabatic
approximation to track the evolution of the quark condensate in a heated system
and reproduce the phase structure expected from equilibrium dynamics. We then
study solutions of the full partial differential equation that describes the
evolution of out of equilibrium configurations to provide a complete
description of the phase transition including describing aspects of bubble
formation.
