Autoionization of Ultracold Cesium Rydberg Atom in 37D5/2 State

Autor: Yuechun Jiao, Liping Hao, Jiabei Fan, Jingxu Bai, Jianming Zhao, Suotang Jia
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Photonics, Vol 9, Iss 5, p 352 (2022)
Druh dokumentu: article
ISSN: 2304-6732
DOI: 10.3390/photonics9050352
Popis: We present the observation of an autoionization of cesium 37D5/2 Rydberg atoms in ultracold gases and analyze the autoionization mechanism. The autoionization process is investigated by varying the delay time tD and Rydberg atomic density. The dependence of ionization signals on Rydberg density shows that the Rydberg density has an effect on not only the initial ion signals but also the evolution of the Rydberg atoms. The results reveal that the initial ionization of 37D5/2 Rydberg atoms is mostly attributed to the blackbody radiation (BBR)-induced photoionization, and the BBR-induced transitions to the nearby Rydberg states that lead to further ionization. Our work plays a significant role in investigating the collision between Rydberg atoms and many-body physics.
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