  Wave packet revivals and fractional revivals are studied by means of a
measure of nonclassicality based on the Fisher information. In particular, we
show that the spreading and the regeneration of initially Gaussian wave packets
in a quantum bouncer and an in the infinite square-well correspond,
respectively, to high and low nonclassicality values. This result is in
accordance with the physical expectations that at a quantum revival wave
packets almost recover their initial shape and the classical motion revives
temporarily afterward.
