关于奇偶q相干态的非经典特性

ON NONCLASSICAL PROPERTIES OF EVEN AND ODD q-COHERENT STATES

运用数值计算方法研究了ｑ畸变对奇偶ｑ相干态量子统计特性的影响。发现奇偶ｑ相干态（ｑ－ＣＳｓ）与通常的奇偶相干态有着显著不同的量子统计特性。压缩现象在这两种畸变态下均可呈准周期性地出现；反聚束和聚束现象都可在一定条件下的两种畸变态中出现。奇偶ｑ相干态与通常奇偶相干态的差异随ｑ值偏离１越大而越大。

e use the numerical method to study the influences of q deformation on thequantum statistical properties of even and odd q-coherent states(E-O q-CSs).It isshown that nonclassical properties of E-O q-CSs are very different from those of theusual even and odd coherent states(ECSs,0CSs).It is found that squeezing effectappears for both even and odd q-CSs and has quasiperiodicity,and the antibunchingeffect may appear for even q-CSs but disappear for odd q-CSs in some range of theparameters q and r.