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Acta Scientiarum Naturalium Universitatis Neimongol

The Antibunching Effect of the Superpositionsof the Generalized Odd and Even q-CSs in an Electric Field

Bai Xian

Published Jan 1, 2002• 0 citations
OpenAlex

Abstract

The superpositions of the generalized odd and even qCSs in an electric field are constructed,and the antibunching effect is studied by the numerical calculating method.It shows that the parameters such as E,q and δ have an influence on the superpositions.

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Journal of Huaiyin Teachers College•Jan 1, 2005•0 citations
摘要 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。 Abstract We use the numerical method to study the influences of q deformation on the quantum statistical properties of even and odd q-coherent states (E一。q-C Ss).It is shown that nonclassical properties of E-0 q-CSs are very different from those of the usual even and odd coherent states (ECSs, OCSs). It is found that squeezing effect appears for both even and odd q-CSs and has quasiperiodicity, and the antibunching effect may appear for even q-CSs but disappear for odd q-CSs in some range of the parameters q and r. 作者及机构信息 朱从旭2, 王发伯1, 匡乐满1 (1)湖南师范大学物理系,高等科学技术中心(世界实验室); (2)中南工业大学研究生处 Authors and contacts ZHU CONG-XU2, WANG FA-BO1, KUANG LE-MAN1 (1)湖南师范大学物理系,高等科学技术中心(世界实验室); (2)中南工业大学研究生处 参考文献 施引文献
The excited odd qs-coherent state and excited even qs-coherent state are constructed. The q , s , and m dependences of the antibunching effect are numerically studied. It is shown that for small r , the excited even qs-coherent state exhibits strong antibunching effect but the even qs-coherent state exhibits strong bunching effect; When the q ( q ≤ 1) is far from 1, as r2 increase, the second-order qs-correlation function exhibits oscillating phenomenon (i.e. alternates between antibunching effect and bunching effect) , whose amplitude and period increase as s and q decrease, but are approximately independent of m; When q→1, the second-order qs-correlation function also exhibits oscillating phenomenon, whose amplitude and period not only increase as 5 decreases but also are dependent on m; In general, the second-order qs -correlation function is more sensitive to s than to q .