Sub-natural linewidth of the probe absorption spectrum in a cold Cs atom molecule system |
| |
Authors: | Feng Zhi-Fang Li Wei-Dong Xiao Lian-Tuan and Jia Suo-Tang |
| |
Institution: | Institute of Theoretical Physics, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China; State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China |
| |
Abstract: | We theoretically analysed the linewidth of the probe
absorption spectrum in a cold Cs atom--molecule system. The
tunnelling coupling between the two excited molecular states,
especially for the Cs atom--molecule system, plays an important role in
obtaining the sub-natural linewidth of the probe absorption spectrum.
For example, when the tunnelling couple strength fulfils \sigma
_12=10γ _ab1, the linewidth is only about 0.66~MHz.
Moreover, since the linewidth of interest is dominated by the
tunnelling coupling, the absorption peak becomes very narrow even in
the case of large pump laser intensities. |
| |
Keywords: | sub-natural linewidth tunnelling coupling |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|