量子电子学报2017，Vol.34Issue(2)：190-195,6.DOI:10.3969/j.issn.1007-5461.2017.02.006
多光子跃迁下二能级原子与NPS态光场相互作用系统的纠缠特性
Entanglement characteristics in system of two-level atom of multi-photon transition interacting with NPS light field
摘要
Abstract
Entanglement characteristics in a system of a two-level atom interacting with a number-phase state (NPS) field are investigated by using the fully quantum theory.The entanglement degree expression of the system is calculated.Influences of the initial atomic state,parameters of field phase,largest-photon number,parameters of light field and transition photon number on the system entanglement degree are analyzed.Results show that when the initial atomic state is in superposition state,and the field ph ase parameter is small relatively,the system entanglement degree is large relatively.When the appropriate largest-photon numbers and transitional photon numbers are chosen,the smaller the field parameter is,the more obvious the entanglement phenomenon will be.关键词
量子光学/NPS态光场/纠缠度/二能级原子Key words
quantum optics/number-phase state light field/entanglement degree/two-level atom分类
数理科学引用本文复制引用
郭彩丽,萨楚尔夫,李斌..多光子跃迁下二能级原子与NPS态光场相互作用系统的纠缠特性[J].量子电子学报,2017,34(2):190-195,6.基金项目
Supported by Natural Science Foundation of Inner Mongolia(内蒙古自然科学基金,2013MS0115),Tens-Hundreds-Thousands Talent Project Foundation of Inner Mongolia Normal University(内蒙古师范大学“十百千”人才基金项目,RCPY-2-2012-K-038) （内蒙古自然科学基金,2013MS0115）
