arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1201.6572quant-ph
收藏

荧光辐射中的干涉辅助压缩

Interference-assisted squeezing in fluorescence radiation

R. Arun

摘要:

研究了相干驱动Y型四能级原子共振荧光的压缩谱。研究发现,当考虑自发衰变通道的量子干涉时,荧光辐射的压缩特性得到了显著的改善。我们发现,强非共振驱动场的稳态压缩谱分量有相当大的增强。根据参数的选择,可以在频谱的内部和外部边带中增加压缩。我们还表明,干涉可以通过增加原子跃迁的衰减率来降低光谱压缩。使用修饰态的解析描述来解释数值结果。

英文摘要:

The squeezing spectrum of the resonance fluorescence is studied for a coherently driven four-level atom in the Y-type configuration. It is found that the squeezing properties of the fluorescence radiation are modified significantly when quantum interference of the spontaneous decays channels is included. We show a considerable enhancement of steady-state squeezing in spectral components for strong and off-resonant driving fields. The squeezing may be increased in both the inner and outer sidebands of the spectrum depending upon the choice of parameters. We also show that the interference can degrade the spectral squeezing by increasing the decay rates of atomic transitions. An analytical description using dressed states is provided to explain the numerical results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑