  We investigate the dynamical evolution of entanglement entropy in a
holographic superconductor model by quenching the source term of the dual
charged scalar operator. By access to the full background geometry, the
holographic entanglement entropy is calculated for a strip geometry at the AdS
boundary. It is found that the entanglement entropy exhibits a robust
non-monotonic behaviour in time, independent of the strength of Gaussian quench
and the size of the strip: it first displays a small dip, then grows linearly,
and finally saturates. In particular, the linear growth velocity of the
entanglement entropy has an upper bound for strip with large width; The
equilibrium value of the non-local probe at late time shows a power law scaling
behaviour with respect to the quench strength; Moreover, the entanglement
entropy can uncover the dynamical transition at certain critical quench
strength which happens to coincide with the one obtained form the dynamical
evolution of scalar order parameter.

High Energy Physics - Theory