Quantum networks strongly depend on the efficient interactions between flying photonic quantum bits and local long-lived atomic matter nodes. To achieve the efficient quantum interfaces between polarization-encoding p...Quantum networks strongly depend on the efficient interactions between flying photonic quantum bits and local long-lived atomic matter nodes. To achieve the efficient quantum interfaces between polarization-encoding photons and spin-encoding atoms, polarization-entangled paired photons with a bandwidth narrower than the natural linewidth of the atoms are highly required. In this paper, we review the generation of subnatural-linewidth polarization-entangled paired photons through spontaneous four-wave mixing with cold atoms, which is very suitable for the application of quantum ne^orks.展开更多
基金supported by the National Natural Science Funds of China(Grants Nos.11474107,11104085,and 11204086)the Guangdong Natural Science Funds for Distinguished Young Scholar(Grant No2014A030306012)+2 种基金the Foundation for outstanding young teacher in Higher Education of Guangdong(Grant No.Yq2013050)the Pearl River Nova Program of Guangzhou(Grant No.2014010)the upported by Program for Changjiang Scholars and Innovative Research Team in University(Grant No.IRT1243)
文摘Quantum networks strongly depend on the efficient interactions between flying photonic quantum bits and local long-lived atomic matter nodes. To achieve the efficient quantum interfaces between polarization-encoding photons and spin-encoding atoms, polarization-entangled paired photons with a bandwidth narrower than the natural linewidth of the atoms are highly required. In this paper, we review the generation of subnatural-linewidth polarization-entangled paired photons through spontaneous four-wave mixing with cold atoms, which is very suitable for the application of quantum ne^orks.
