Polarization Engineering in Photonic Crystal Waveguides for Spin-Photon Entanglers.

  title={Polarization Engineering in Photonic Crystal Waveguides for Spin-Photon Entanglers.},
  author={A. B. Young and A. C. T. Thijssen and Daryl M. Beggs and Petros Androvitsaneas and L. Kuipers and John G. Rarity and Stephen Hughes and Ruth Oulton},
  journal={Physical review letters},
  volume={115 15},
By performing a full analysis of the projected local density of states (LDOS) in a photonic crystal waveguide, we show that phase plays a crucial role in the symmetry of the light-matter interaction. By considering a quantum dot (QD) spin coupled to a photonic crystal waveguide (PCW) mode, we demonstrate that the light-matter interaction can be asymmetric, leading to unidirectional emission and a deterministic entangled photon source. Further we show that understanding the phase associated with… 

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