Realizing quantum controlled phase-flip gate through quantum dot in   silicon slow-light photonic crystal waveguide
  We propose a scheme to realize controlled phase gate between two single photons through a single quantum dot in slow-light silicon photonic crystal waveguide. Enhanced Purcell factor and beta factor lead to high gate fidelity over broadband frequencies compared to cavity-assisted system. The excellent physical integration of this silicon photonic crystal waveguide system provides tremendous potential for large-scale quantum information processing. 
Jie Gao, Fangwen Sun and Chee Wei Wong