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哈尔滨师范大学 光电带隙材料省部共建教育部重点实验室,黑龙江 哈尔滨,150025
纸质出版日期:2015-12-10,
收稿日期:2015-9-5,
修回日期:2015-10-10,
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张丹凤, 吕树臣,. 等同双原子Jaynes-Cummings模型的量子特性及系统光谱[J]. 发光学报, 2015,36(12): 1375-1382
ZHANG Dan-feng, LYU Shu-chen,. Quantum Properties and Spectra of A Pair of Equivalent Atoms Jaynes-Cummings Model[J]. Chinese Journal of Luminescence, 2015,36(12): 1375-1382
张丹凤, 吕树臣,. 等同双原子Jaynes-Cummings模型的量子特性及系统光谱[J]. 发光学报, 2015,36(12): 1375-1382 DOI: 10.3788/fgxb20153612.1375.
ZHANG Dan-feng, LYU Shu-chen,. Quantum Properties and Spectra of A Pair of Equivalent Atoms Jaynes-Cummings Model[J]. Chinese Journal of Luminescence, 2015,36(12): 1375-1382 DOI: 10.3788/fgxb20153612.1375.
在全量子理论的背景下提出两个二能级原子分别与一单模腔场相互作用的系统模型
利用量子主方程和数值模拟计算等方法
研究该体系中腔场平均光子数、Mandel's
Q
因子及二阶量子相关度在非稳态时的变化规律。此外
对体系中原子及腔场中光谱结构进行了分析。结果表明:减小腔场耗散系数
增大原子间耦合系数
体系量子特性愈加明显。体系光谱呈现出Mollow 三重峰结构
且原子辐射谱强度远大于腔场辐射谱强度。当原子跃迁频率与腔场跃迁频率为近共振时
Mollow峰值为三峰中最大值。此外
增大原子与腔场间耦合系数
可增大原子光谱的中峰强度;而增大腔场光谱的中峰强度
则需减小原子与腔场间耦合系数。
Based on the all-quantum theory
the system which includes two double-level atoms interacting with two single-mode cavity fields separately was studied. With making the Markoff and the rotating-wave approximations
using quantum master equation and the numerical simulation
we investigated the influence of the cavity dissipation coefficient and the cavity-cavity coupling coefficient on the mean photon number distribution under the unsteady situation. In the meantime
we discussed how the Mandel's
Q
parameter and the second-order coherence were changing
and then analyzed the quantum effects of the system. Besides that
we analyzed the spectra of the atoms and the cavities. The results show that the system quantum properties become more obvious by reducing the cavity dissipation coefficient and increasing the coupling coefficient between cavities. The system spectra present Mollow three peak structure
and the atomic emission spectrum intensity is greater than the cavity field spectrum intensity. When the atomic transition frequency and the cavity transition frequency is near resonance
the Mollow peak is the highest of the three peaks. In addition
the spectrum intensity of the atomic middle peak increases with the increasing of the atom-cavity coupling coefficient
and the spectrum intensity of the cavity middle peak is quite opposite.
量子主方程双耦合二能级系统亚泊松分布反群聚效应自发辐射光谱
quantum master equationdouble coupling two-level systemsub-Poisson distributionanti-bunching effectspontaneous emission spectrum
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