高师理科学刊2025，Vol.45Issue(9)：51-55,5.DOI:10.3969/j.issn.1007-9831.2025.09.008
强耦合下腔场-原子耦合强度对光力系统量子特性的影响
Influence of cavity field-atom coupling strength on the quantum characteristics of the optomechanical system under strong coupling
刘迪 1关禹遥 1樊越 1曲秀荣1
作者信息
- 1. 哈尔滨师范大学 物理与电子工程学院,黑龙江 哈尔滨 150025
- 折叠
摘要
Abstract
Studies the quantum distribution and coherence characteristics of the optomechanical coupling system composed of a two-level atom and a single-mode cavity field under strong coupling conditions.The results show that the average photon number and the second-order coherence degree of the system decrease to 0 with the increase of time,and the parameter increases to 0 with the increase of time.The coupling strength g has no obvious effect on the average photon number and the parameter.With the increase of the coupling strength,the peak value of the second-order coherence degree decreases,the attenuation accelerates and is always less than 1,and the light field shows an anti-bunching effect.The influence of the coupling strength g on the photon number distribution is mainly reflected in the initial stage of the system evolution.Strong coupling makes the photon number distribution tend to concentrate on low photon numbers and increase the peak probability.关键词
光力耦合系统/平均光子数/二阶相干度/Mandel Q参数/光子数分布Key words
optomechanical coupling system/average photon number/second-order coherence/Mandel Q parameter/photon number distribution分类
数理科学引用本文复制引用
刘迪,关禹遥,樊越,曲秀荣..强耦合下腔场-原子耦合强度对光力系统量子特性的影响[J].高师理科学刊,2025,45(9):51-55,5.
