  Quantum recurrence and dynamic localization are investigated in a class of
ac-driven tight-binding Hamiltonians, the Krawtchouk quantum chain, which in
the undriven case provides a paradigmatic Hamiltonian model that realizes
perfect quantum state transfer and mirror inversion. The equivalence between
the the ac-driven single-particle Krawtchouk Hamiltonian $\hat{H}(t)$ and the
non-interacting ac-driven bosonic junction Hamiltonian enables to determine in
a closed form the quasi energy spectrum of $\hat{H}(t)$ and the conditions for
exact wave packet reconstruction (dynamic localization). In particular, we show
that quantum recurrence, which is predicted by the general quantum recurrence
theorem, is {\it exact} for the Krawtchouk quantum chain in a dense range of
the driving amplitude. Exact quantum recurrence provides perfect wave packet
reconstruction at a frequency which is {\it fractional} than the driving
frequency, a phenomenon that can be referred to as fractional dynamic
localization.
