Interaction of Josephson Qubits with Strong QED Cavity Modes:. Dynamical Entanglement Transfer and Navigation

We study solid state implementations of entanglement and communication protocols using an interconnection scheme among mesoscopic sub-circuits, suitable for quantum communication. The building block is a superconducting qubit coupled with a solid-state resonator. We study decoherence, discuss rules for environment engineering and analyze working conditions where a high degree of protection from phase errors is achieved. We review some of the protocols which have been recently proposed for studying entanglement in the solid state.