【摘要】 构造出了一种新的奇偶非线性相干态,并借助于数值计算方法研究了它们的压缩、振幅平方压缩、反聚束和相位概率分布等非经典性质.结果表明,与通常的奇偶相干态和非线性奇偶相干态不同,在参数|λ|的不同取值范围内,新的奇偶非线性相干态在Y1和Y2两个方向均可呈现振幅平方压缩效应,而压缩效应仅在偶非线性相干态的X2方向上呈现,反聚束效应仅在奇非线性相干态中呈现.另外,通过研究新的奇偶非线性相干态相位概率分布,发现新的奇偶非线性相干态具有完全不同的量子干涉特性.更多还原

【Abstract】 A new kind of even and odd nonlinear coherent states(EONLCS)is constructed.Using the numerical computation method,the non-classical properties such as squeezing,amplitude-squared squeezing,anti-bunching and phase probability distribution of the new EONLCS are investigated.The results show that,in the different ranges of the parameter ｜λ｜,the new EONLCS exhibits amplitude-squared squeezing in the directions Y-1 and Y-2.The squeezing effect is shown in the direction X-2 for new even nonlinear coherent states,and the anti-bunching effect is shown for new odd nonlinear coherent states.Moreover,we find that the new EONLCS exhibit different quantum interference properties by studying the probability distributions of the states.更多还原