  We give a detailed account and extensions of a holographic flavor
superconductivity model which we have proposed recently. The model has an
explicit field theory realization as strongly coupled N=2 Super Yang-Mills
theory with fundamental matter at finite temperature and finite isospin
chemical potential. Using gauge/gravity duality, i.e. a probe of two flavor
D7-branes in the AdS black hole background, we show that the system undergoes a
second order phase transition with critical exponent 1/2. The new ground state
may be interpreted as a rho meson superfluid. It shows signatures known from
superconductivity, such as an infinite dc conductivity and a gap in the
frequency-dependent conductivity. We present a stringy picture of the
condensation mechanism in terms of a recombination of strings. We give a
detailed account of the evaluation of the non-Abelian Dirac-Born-Infeld action
involved using two different methods. Finally we also consider the case of
massive flavors and discuss the holographic Meissner-Ochsenfeld effect in our
scenario.
