| 原子和腔场衰减对耦合腔系统中几何量子失谐的影响 |
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| 引用本文： | 卢永祥,卢道明.原子和腔场衰减对耦合腔系统中几何量子失谐的影响[J].光电子．激光,2021,32(1):64-69. |
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| 作者姓名： | 卢永祥 卢道明 |
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| 作者单位： | 武夷学院信息技术与实验室管理中心,福建武夷山354300;武夷学院机电工程学院,福建武夷山354300 |
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| 基金项目： | 福建省自然科学基金项目(2015J01020) (1.武夷学院信息技术与实验室管理中心; 2.武夷学院机电工程学院,福建 武夷山 354300) |
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| 摘 要： | 本文考虑原子和腔场存在衰减的情况,研究了耦合腔系统中两子系统间的几何量子失谐.在原子和腔场衰减系数相等的特殊情况下,通过解薛定谔方程,给出了系统态矢演化规律.采用数值计算方法,讨论了原子和腔场衰减对两子系统间几何量子失谐的影响.研究结果表明:两原子间、两腔场间、以及原子和腔场之间的几何量子失谐都呈现出振幅衰减式振荡,直...
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| 关 键 词： | 量子光学 原子衰减 腔场衰减 耦合腔 几何量子失谐 |
| 收稿时间： | 2020/9/9 0:00:00 |
The influences of the atom-decay and the cavity-decay on geometrical quantum discord between two subsystems in the coupled-cavity system |
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| LU Yong-xiang and LU Dao-ming.The influences of the atom-decay and the cavity-decay on geometrical quantum discord between two subsystems in the coupled-cavity system[J].Journal of Optoelectronics·laser,2021,32(1):64-69. |
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| Authors: | LU Yong-xiang and LU Dao-ming |
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| Affiliation: | Information Technology and Laboratory Management Center and College of Mechanic and Electronic Engineering,Wuyi University,Wuyishan 354300,China |
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| Abstract: | The geometrical quantum discords betwe en two subsystems in the coupled-cavity system are studied when there are the a tom-decay and the cavity-decay.Under the special condition that atomic decay r ate equals to the decay rate of cavity field,the evolution of the system state v ector is given.The effects of the atom-decay and the cavity-decay on the geome trical quantum discords are discussed.Numerical results show that the geometrica l quantum discords between two atoms,between two cavities,as well as between ato m and cavity all exhibit damping oscillation behavior until they decay to zero.O n the other hand,the decays of these geometrical quantum discords are all accele rated with the increase of decay rate. |
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| Keywords: | quantum optics atom-decay cavity-decay coupled-cavity geometrical quantum discord |
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