量子电子学报2018，Vol.35Issue(2)：184-190,7.DOI:10.3969/j.issn.1007-5461.2018.02.009
双模光场与∧型三能级原子量子纠缠的精确解
Exact solution of quantum entanglement of two-mode field interacting with ∧-type three-level atom
摘要
Abstract
Quantum entanglement of a two-mode coherent field interacting with a A-type three-level atom system is solved exactly without rotating wave approximation,and the influence of mean photon number and detuning on quantum entanglement evolution are discussed.Numerical results show that the quantum entanglement period increases with the increasing of mean photon number.The quantum entanglement maximum decreases gradually with increasing of detuning,and the time reaching the maximum increases gradually.When the detuning is relative large,the quantum entanglement has better periodicity in a relatively short period.The small zigzag shaped oscillation of quantum entanglement evolution curve due to virtual photon effect is gradually enhanced with the increasing of mean photon number and detuning.关键词
量子光学/量子纠缠/相干态正交化展开/三能级原子/非旋波近似Key words
quantum optics/quantum entanglement/coherent-state orthogonalization expansion/three-level atom/without rotating wave approximation分类
数理科学引用本文复制引用
丛红璐,刘雪华,赵玉娜,于娜,任学藻..双模光场与∧型三能级原子量子纠缠的精确解[J].量子电子学报,2018,35(2):184-190,7.基金项目
Supported by Higher Education Natural Science Foundation for Youth Scientist of Hebei Province(河北省高等学校科学技术研究青年基金,QN2017401),Innovation Ability Promotion Program Soft Science Research and Science Popularization Project(河北省创新能力提升计划软科学研究及科普专项,17K55304D),Construction Project for Experimental Teaching Demonstration Center of Hebei Province(河北省实验教学示范中心建设项目) （河北省高等学校科学技术研究青年基金,QN2017401）
