Implementation scheme for quantum controlled phase-flip gate through quantum dot in slow-light photonic crystal waveguide
Jie Gao, F. W. Sun, Chee Wei Wong
We propose a scheme to realize controlled phase gate between two single photons through a single quantum dot in a slow-light photonic crystal waveguide. Enhanced Purcell factor and large β-factor lead to high gate fidelity over broadband frequencies compared to cavity-assisted system. The excellent physical integration of this photonic crystal waveguide system provides tremendous potential for large-scale quantum information processing.
arXiv:0803.1017•Applied Physics Letters•Oct 13, 2008•24 citations