  The effects of dynamic localization in a solid-state system -- a quantum dot
-- are considered. The theory of weak dynamic localization is developed for
non-interacting electrons in a closed quantum dot under arbitrary
time-dependent perturbation and its equivalence to the theory of weak Anderson
localization is demonstrated. The dephasing due to inelastic electron
scattering is shown to destroy the dynamic localization in a closed quantum dot
leading to the classical energy absorption at times much greater than the
inelastic scattering time. Finally a realistic case of a dot weakly connected
to leads is studied and it is shown that the dynamic localization may lead to a
drastic change of the shape of the Coulomb blockade peak in the dc conductance
vs the gate voltage.
