Novel quantum transport in superconducting phase-qubit arrays.

The dramatic increase of coherence times in superconducting phase qubit experiments allows the exploration of multi-qubit quantum dynamics. In this talk I theoretically explore the controlled propagation of excitations in capacitively-coupled phase qubits. By exploiting the tunability and flexible topology of phase-qubit arrays, this artificial solid can demonstrate novel quantum transport effects such as perfect state transfer. These ideas are confirmed by multi-qubit, multi-level simulations including the effects of long-range couplings, disorder, and decoherence.