摘要
应用在一定初态的三能级与光腔相互作用来实现纠缠态的制备,并且选择适当的参数范围实现三能级原子参量下转化过程,讨论了实现压缩和纠缠增强的方法。分析结果表明:要得到高亮度的和较高的压缩和纠缠,光体系必须工作在参量下转化过程的阈值以上。
A system of three-level atoms which are being injected in some state into a cavity at a rate is considered.The master equation of the cavity modes is obtained.The entanglement properties of two-mode field is discussed according to the entanglement criterion proposed by Duan et al.The results show that under some conditions,the system can work as a NPDC.In addition,in order to obtain the bright and strong entangled field,the system should operate over threshold.
出处
《重庆理工大学学报（自然科学）》
CAS
2010年第8期120-126,共7页
Journal of Chongqing University of Technology：Natural Science
基金
国家自然科学基金资助项目(10674052)
咸宁学院研究项目(J09195)
关键词
三能级
主方程
纠缠
增强
three-level model
master equation
entanglement
enhancement
