二能级原子与压缩光场相互作用中的原子压缩效应

ATOMIC DIPOLE SQUEEZING OF A TWO-LEVEL ATOM INTERACTING WITH SQUEEZED FIELD

文中采用时间演化算符，考虑到初始原子相干性及失谐量，研究了单个二能级原子与压缩真空态辐射场相互作用中原子的偶极压缩。研究表明，对于各种不同的初始原子态，失谐量对双光子Ｊａｙｎｅｓ—Ｃｕｍｍｉｎｇｓ模型中的原子压缩行为都将产生很大的影响。通过数值计算，还讨论了初始压缩光场的压缩参数对原子压缩的影响。

Considering the initial atomic coherence and the detuning, dipole squeezing of a two-level atom interacting with squeezed vacuum field is studied by means of the time-evolution operator method. The influence of the frequency detuning on the dipole squeezing in the two-photon Janes-Cummings model for various initial atomic hates is invesategated and the influence of the squeezing components of squeezed vacuum on the dipole squeeaing is discussed.