摘要
基于光学元件、分别囚禁于两个远距离腔中的两个Λ-型的三能级原子、交叉克尔非线性介质和常规光子探测器,提出一个利用交叉克尔非线性介质实现两原子受控相位门的有效方案.该方案的优点是在Lamb-Dicke极限下,不需要探测器同时相应且具有很高的成功几率.这些器件在目前的实验条件下易于实现.
We propose an effective protocol to direct implement the two-atom controlled phase gate with the cross-Kerr nonlinearity by interference of polarized photons.The protocol is based on optical elements,two Λ-type three-level atoms trappd in two distant cavities,cross-Kerr nonlinearity and the conventional photon detectors,which are feasible with existing experimental technology.The advantages of the protocol are that in Lamb-Dicke limit,the protocol do not require the simultaneous click of the detectors and has a high success probability.This makes the present protocol more realizable in experiments.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第6期851-856,共6页
Journal of Fuzhou University(Natural Science Edition)
基金
国家自然科学基金资助项目(11105030)
