Now showing items 1-6 of 6

    • Cavity-free photon blockade induced by many-body bound states. 

      Zheng, Huaixiu; Gauthier, Daniel J; Baranger, Harold U (Physical review letters, 2011-11)
      The manipulation of individual, mobile quanta is a key goal of quantum communication; to achieve this, nonlinear phenomena in open systems can play a critical role. We show theoretically that a variety of strong quantum ...
    • Decoy-state quantum key distribution with nonclassical light generated in a one-dimensional waveguide. 

      Zheng, Huaixiu; Gauthier, Daniel J; Baranger, Harold U (Optics letters, 2013-03)
      We investigate a decoy-state quantum key distribution (QKD) scheme with a sub-Poissonian single-photon source, which is generated on demand by scattering a coherent state off a two-level system in a one-dimensional waveguide. ...
    • Interacting Photons in Waveguide-QED and Applications in Quantum Information Processing 

      Zheng, Huaixiu (2013)
      Strong coupling between light and matter has been demonstrated both in classicalcavity quantum electrodynamics (QED) systems and in more recent circuit-QEDexperiments. This enables the generation of strong nonlinear photon-photon ...
    • Persistent quantum beats and long-distance entanglement from waveguide-mediated interactions. 

      Zheng, Huaixiu; Baranger, Harold U (Physical review letters, 2013-03)
      We study photon-photon correlations and entanglement generation in a one-dimensional waveguide coupled to two qubits with an arbitrary spatial separation. To treat the combination of nonlinear elements and 1D continuum, ...
    • Quantum phase transition in a resonant level coupled to interacting leads. 

      Mebrahtu, Henok T; Borzenets, Ivan V; Liu, Dong E; Zheng, Huaixiu; Bomze, Yuriy V; Smirnov, Alex I; Baranger, Harold U; ... (8 authors) (Nature, 2012-08)
      A Luttinger liquid is an interacting one-dimensional electronic system, quite distinct from the 'conventional' Fermi liquids formed by interacting electrons in two and three dimensions. Some of the most striking properties ...
    • Waveguide-QED-based photonic quantum computation. 

      Zheng, Huaixiu; Gauthier, Daniel J; Baranger, Harold U (Physical review letters, 2013-08)
      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 ...