摘要
利用量子熵理论,研究了二项式光场与级联三能级原子的量子纠缠,讨论了光场与原子的初始参量对其量子纠缠性质的影响.结果表明,利用二项式光场的特性,可以揭示从相干态到数态之间的所有态光场与三能级原子相互作用时的量子纠缠性质.选择适当的系统参数可以制备稳定的光场-原子qutrit纠缠态.
Quantum entanglement between a binomial field and a cascade three level atom is studied by using quantum entropy theory, and the influences of the initial state parameters of the field and the atom on the quantum entanglement are discussed. The results show that quantum entanglement of all states from the coherent state to number state interacting with a cascade three level atom can be displayed by using the binomial field property. Steady field-atom qutrit entanglement state can be prepared via the appropriate selection of system parameters.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第9期4631-4637,共7页
Acta Physica Sinica
基金
国家自然科学基金(批准号:10374025)资助的课题.~~
关键词
二项式光场
级联三能级原子
光场熵
量子纠缠
binomial state field, cascade three level atom, field entropy, quantum entanglement
