量子干涉效应对原子共振荧光非经典特性的影响

Influence of Quantum Interference on Non-classical Properties of Resonance Fluorescence of a Three-level V-type Atom

研究了两个自发辐射路径之间的量子干涉效应对V型三能级原子压缩谱和光子反聚束效应的影响 .结果表明 ,量子干涉可以加强压缩效应和展宽出现压缩的相位角分量的范围 ,但却会减弱反聚束效应 .

Phase-dependent squeezing spectrum and photon antibunching of resonance fluorescence from a three-level V-type atom driven by a coherent field are investigated. We show that for weak excitation intensities quantum interference can greatly enhance squeezing and change the phase quadrature at which the maximum squeezing occurs. We also notice that the maximum squeezing can appear not only in either the in-phase or the out-of-phase quadrature but also in any phase quadrature, and at which phase quadrature the maximum squeezing display can be controlled by choosing the detuning of the driving field from the atomic transition. However, quantum interference can't enhance antibunching effect greatly.