  We investigate the dynamics of nonclassical states of light in coupled
optical structures and we demonstrate a number of intriguing features
associated with such arrangements. By diagonalizing the system's Hamiltonian,
we show that these geometries can support eigenstates having anomalous optical
intensity distribution with no classical counterpart. These features may
provide new avenues towards manipulating light flow at the quantum level. By
projecting the Hamiltonian operator on Hilbert subspaces spanning different
numbers of photon excitations, we demonstrate that processes such as coherent
transport, state localization and surface Bloch oscillations can take place in
Fock space. Furthermore, we show that Hamiltonian representations of Fock space
manifolds differing by one photon obey a discrete supersymmetry relation
