相干光场的相对相位对K-型五能级原子的单光子和双光子吸收性质的影响

摘要

When the transitions connected by two nearly degenerate ground levels with an intermediate level in a five-level K-type atom interact with the same vacuum radiation field,between which the quantum interference leads to vacuum-induced coherence.We find that the vacuum-induced coherence make important effects on singleand two-photon transparency in the five-level K-type atomic system,the single-absorption spectra can also be related to relative phase between the probe and coupling fields.%当K-型五能级原子的两基态能级邻近简并时,连接基态的两个跃迁路径与同一个真空场辐射场相互作用导致的量子干涉效应便产生了空场诱导相干性。K-型五能级原子系统的单光子和双光子电磁诱导透明受空场诱导相干性的作用效果十分明显,单光子吸收性质与外加相干光场的相对相位也有直接联系。