利用量子理论,采用数值计算的方法对体系纠缠熵进行分析,得出光场相干参量、模间光子数、Kerr介质系数以及失谐量对级联三能级原子纠缠演化的影响.结果显示:纠缠强度随光场强度的增强而逐渐增强,模间光子数的增加可以使纠缠变得稳定.Kerr效应在光子数较多时影响显著.Kerr系数不变时,失谐量的增加会使纠缠强度增强,但这种影响主要体现在相互作用初期.
参考文献
| [1] | Einstein A,et al.Can quantum-mechanical description of physical reality be considered complete?[J].Phys.Rev.A,1935,47(10):777-780. |
| [2] | Lai W K,Buek V,Knight P L.Dynamics of a thrée-level atom in a two-mode squeezed vacuum[J].Phys.Rev.A,1991,44:6043-6056. |
| [3] | Peng Jinsheng,Li Gaoxiang.Influence of the virtual-photon processes on the squeezing of light in the two-photon Jaynes-Cummings model[J].Phys.Rev.A,1993,47:3167-3172. |
| [4] | Fei Zhenle,Zheng Xiaohu,Cao Zhuoliang.Atomoc dipole squeezing in the system of the two-mode entangled coherent states interacting with a V-type three-level atom in Kerr medium[J].Chinese Journal of Quantum Electronics(量子电子学报),2006,23(1):71-76 (in Chinese). |
| [5] | Lai Yunzhong,Zhou Wei.Dynamics of two-mode SU (1,1) coherent state interacting with a three-level cascade atom[J].Acta Optica Sinica(光学学报),1997,17(10):1323-1326 (in Chinese) |
| [6] | Wodkiew icz K,Knight P L,Buck le S J,et al.Squeezing and super positions states[J].Phys.Rev.A,1987,35(6):2567-2577. |
| [7] | Lu Hong,Peng Jinsheng,Li Gaoxiang.Dynamics of two-mode SU(1,1) coherent states interacting with the V-type three-level atom[J].Acta Physics Sinica(物理学报),1995,44(5):708-714 (in Chinese). |
| [8] | Wang Qingshi,Guo Yunxiang,Lai Yunzhong.Quantum entanglement of two-mode SU(1,1) coherent states with three-level atoms in a high Q cavity with Kerr medium[J].Chinese Journal of Quantum Electronics(量子电子学报),2009,26:577-584 (in Chinese). |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%