arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0912.4099physics.atom-ph
收藏

受控粒子间相互作用下的相干布居俘获

Coherent Population Trapping with Controlled Interparticle Interactions

H. Schempp, G. Günter, C. S. Hofmann, C. Giese, S. D. Saliba, B. D. DePaola, T. Amthor, M. Weidemüller, S. Sevinçli, T. Pohl

摘要:

本文研究了强相互作用超冷里德伯气体中的相干布居俘获。尽管有很强的范德华相互作用和粒子间的相关性,我们观察到的持久性与亚自然的线宽在单粒子共振频率的共振,因为我们调整的相互作用强度。这种狭窄的共振不能理解内的平均场描述的强里德伯-里德伯相互作用。相反,一个多体密度矩阵的方法,占粒子间的相关性的动力学,重现所观察到的光谱特征。

英文摘要:

We investigate Coherent Population Trapping in a strongly interacting ultracold Rydberg gas. Despite the strong van der Waals interactions and interparticle correlations, we observe the persistence of a resonance with subnatural linewidth at the single-particle resonance frequency as we tune the interaction strength. This narrow resonance cannot be understood within a meanfield description of the strong Rydberg--Rydberg interactions. Instead, a many-body density matrix approach, accounting for the dynamics of interparticle correlations, is shown to reproduce the observed spectral features.

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。

↑