Publications [#303603] of Harold U. Baranger

Papers Published
  1. Zheng, H; Gauthier, DJ; Baranger, HU, Waveguide-QED-Based Photonic Quantum Computation, Physical Review Letters, vol. 111 no. 9 (August, 2013), pp. 090502 [1211.1711v3], [doi] .

    We propose a new scheme for quantum computation using flying qubits--propagating photons in a one-dimensional waveguide interacting with matter qubits. Photon-photon interactions are mediated by the coupling to a four-level system, based on which photon-photon π-phase gates (CONTROLLED-NOT) can be implemented for universal quantum computation. We show that high gate fidelity is possible, given recent dramatic experimental progress in superconducting circuits and photonic-crystal waveguides. The proposed system can be an important building block for future on-chip quantum networks.