  In globally coupled ensembles of identical oscillators so-called chimera
states can be observed. The chimera state is a symmetry-broken regime, where a
subset of oscillators forms a cluster, a synchronized population, while the
rest of the system remains a collection of non-synchronized, scattered units.
We describe here a blinking chimera regime in an ensemble of seven globally
coupled rotators (Kuramoto oscillators with inertia). It is characterized by a
death-birth process, where a long-term stable cluster of four oscillators
suddenly dissolves and is very quickly reborn with a new, reshuffled
configuration. We identify three different kinds of rare blinking events and
give a quantitative characterization by applying stability analysis to the
long-lived chaotic state and to the short-lived regular regimes which arise
when the cluster dissolves.
