  We obtain the non-equilibrium condensate of the Chern Simons density induced
by a misaligned homogeneous coherent axion field in linear response. The
Chern-Simons dynamical susceptibility is simply related to the axion
self-energy, a result that is valid to leading order in the axion coupling but
to all orders in the couplings of the gauge fields to other fields within or
beyond the standard model except the axion. The induced Chern-Simons density
requires renormalization which is achieved by vacuum subtraction. For
ultralight axions of mass $m_a$ coupled to electromagnetic fields with coupling
$g$, the renormalized high temperature contribution post-recombination is
$\langle \vec{E}\cdot\vec{B}\rangle(t) = -\frac{g\,\pi^2\,T^4}{15}
\,\overline{a}(t)+ \frac{g \,m^2_a\,T}{16\,\pi}\,\dot{\overline{a}}(t) $ with
$\overline{a}(t)$ the dynamical homogeneous axion condensate. We conjecture
that emergent axion-like quasiparticle excitations in condensed matter systems
may be harnessed to probe cosmological axions and the Chern-Simons condensate.
Furthermore, it is argued that a misaligned axion can also induce a non-abelian
Chern-Simons condensate of similar qualitative form, and can also ``seed''
chiral symmetry breaking and induce a neutral pion condensate after the QCD
phase transition.
