  We propose a selective dynamical decoupling scheme on a chain of permanently
coupled qubits with XX type interactions, which is capable of dynamically
suppressing any coupling in the chain by applying sequences of local pulses to
the individual qubits. We demonstrate that high-fidelity single- and two-qubit
gates can be achieved by this procedure and that sequences of gates can be
implemented by this pulse control alone. We discuss the applicability and
physical limitations of our model specifically for strongly coupled
superconducting flux qubits. Since dynamically modifying the couplings between
flux qubits is challenging, they are a natural candidate for our approach.
