第Ⅰ种非对称两态叠加多模叠加态光场的偶数阶等阶N次方Y压缩

本文利用多模压缩态理论,研究了第Ⅰ种非对称两态叠加多模叠加态光场|Ψ_Ⅰ^(ab)Ⅰ>_q的偶数阶等阶N次方Y压缩特性.结果发现:在压缩阶数N取偶数情况下,只要构成态|Ψ_Ⅰ^(ab)Ⅰ>_q的两个量子光场态的强度(即平均光子数)不相等,则当各模的初始相位φ_j^(a)、φ_j^(b)(j＝1,2,3,…,q)、态间的初始相位差(θ_pq^(bI)-θ_nq^(aR))以及与上述的两个量子光场态相对应的各单模相干态光场的光子干涉项之和 ＝R_j^(a)R_j^(b)cos(φ_j^(a)-φ_j^(b))]等满足一定条件时,态|Ψ_Ⅰ^(ab)Ⅰ>_q可呈现出周期性变化的、任意偶数阶的等阶N次方Y压缩效应.这一结果与现有文献报道的结果截然不同.

THE PROPERTIES OF EVEN NUMBER ORDER EQUAL-ORDER N-TH POWER Y-SQUEEZING IN THE FIRST KIND OF ASYMMETRICAL MULTIMODE SUPERPOSITION STATE LIGHT FIELD WITH THE SUPERPOSITION OF TWO QUANTUM STATES

In the paper,the properties of even-number equal-order N-th power Y-squeezing in the first kind of asymmetrical multimode superposition state light field |Ψ_Ⅰ^(ab)Ⅰ>_q with the superposition of two quantum states is studied in detail,by utilizing the theory of multimode squeezed states.It is found that if the squeezed order number is an even number,and if the intensity (the average photon numbers)of the two quantum light field states which compose of the state |Ψ_Ⅰ^(ab)Ⅰ>_q are unequal,and if some certain conditions are satisfied respectively by the initial phase φ_j^(a)、φ_j^(b) of all mode,and by the initial phase difference(θ_pq^(bI)-θ_nq^(aR)) between the two components of the state |Ψ_Ⅰ^(ab)Ⅰ>_q,and by the photon intervene term sum =R_j^(a)R_j^(b)cos(φ_j^(a)-φ_j^(b))] of each-mode coherent state light field,which is corresponding to the above-mentioned two quantum light field states,the state|Ψ_Ⅰ^(ab)Ⅰ>_q display the effects of any even-number-order equal-order N-th power Y-squeezing,that changes periodcally.This result is entirely different from the result reported in current references.