  We describe a protocol to read out the topological invariant of interacting
1D chiral models, based on measuring the mean chiral displacement of
time-evolving bulk excitations. We present analytical calculations and
numerical Matrix Product State simulations of interacting Su-Schrieffer-Heeger
(SSH) chains, demonstrating how the mean chiral displacement allows to
distinguish between topological insulator, trivial insulator and
symmetry-broken phases. Finally, we provide an experimental blueprint for
realizing a model displaying these three phases and describe how to detect
those.
