【摘要】 运用量子熵理论并借助于数值计算方法,研究与级联三能级原子相互作用的二项式光场的熵压缩性质,光场的初始参量对光场熵压缩的影响。当初始光场处于相干态时,在较短时间内光场出现熵压缩效应;当初始光场处于中问态时,光场熵压缩的深度和持续时间增加;当初始光场过渡到数态时,光场熵压缩明显减弱直到消失．研究结果表明:在与原子相互作用过程中,从相干态到数态过渡的中间态光场具有较好的熵压缩性质．更多还原

【Abstract】 Entropy squeezing effect of the binomial state field interacting with a cascade three-level at- om are studied by using quantum entropy theory effect and calculation method,and the influences of initial field parameters on the entropy squeezing effect of the field are discussed.The results are that, firstly,when the field is initially in a coherent state,entropy squeezing effect can be exhibited in a short time;secondly,when the initial field is in a middle state between the coherent state and number state,the depth and sustained time of the field’s squeezing effect increase;finally,when the initial field transmit to a lock state,the field’s squeezing effect weakens and disappears in the end.The re- sults show that binomial state field displays obviously entropy squeezing effect when it interacts with a cascade three-level atom.更多还原