  Metallic quantum criticality often develops in strongly correlated systems
with local effective degrees of freedom. In this work, we consider an Anderson
lattice model with SU(2) symmetry. The model is treated by the extended
dynamical mean-field theory (EDMFT) in combination with a continuous-time
quantum Monte Carlo method. We demonstrate a continuous quantum phase
transition, establish the ensuing quantum critical point to be of a
Kondo-destruction type, and determine the anomalous scaling properties. We
connect the continuous nature of the transition to a dynamical Kondo effect,
which we characterize in terms of a local entanglement entropy and related
properties. This effect elucidates the unusual behavior of quantum critical
heavy fermion systems.
