摘要
研究了充满类克尔介质的高 Q腔中二能级原子与单模相干光场发生双光子相互作用 (双光子 B- J模型 )时 ,类克尔介质对该体系量子态保真度的影响。结果表明 :当类克尔介质与光场耦合较强时 ,原子的量子态保真度为 1,即原子处于退纠缠状态 ,此时光场对原子的作用被类克尔介质所屏蔽。
Fidelity of quantum state in two photon B J model is investigated.It is shown that the Kerr like medium significantly influences the fidelity of quantum states.When the coupling between the Kerr like medium and light field is strong,the fidelity of atom keeps to be 1,the atom is disentangled,which results from the shielding of interaction of the field and the atom by the Kerr like medium.
出处
《光电子．激光》
EI
CAS
CSCD
2000年第2期198-202,共5页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目!( 197740 69)
