We consider a class of models of self-interacting bosons hopping on a lattice. We show that properly tailored space-temporal coherent control of the single-body coupling parameters allows for the universal quantum computation in a given sector of the global Fock space. This general strategy for encoded universality in bosonic systems has, in principle, several candidates for physical implementation.

• Received 19 April 2002

DOI:https://doi.org/10.1103/PhysRevA.66.050301