Nanocrystals in silicon photonic crystal standing-wave cavities as spin-photon phase gates for quantum information processing

作者：Xiao Y F; Gao J; Yang X; Bose R; Guo G C; Wong C W^*

来源：Applied Physics Letters, 2007, 91(15): 151105.

DOI：10.1063/1.2795798

By virtue of a silicon high-Q photonic crystal nanocavity, we propose and examine theoretically interactions between a stationary electron spin qubit of a semiconductor nanocrystal and a flying photon qubit. Firstly, we introduce, derive, and demonstrate the explicit conditions toward realization of a spin-photon phase gate, and propose these interactions as a generalized quantum interface for quantum information processing. Secondly, we examine single-spin-induced reflections as direct evidence of intrinsic bare and dressed modes in our coupled nanocrystal-cavity system.

• 出版日期2007-10-8
• 单位中国科学技术大学