论文标题
高$ n $，$ 49 \ Lessim n \ Lessim150 $，5sns（$^{3} $ s $ _ {1} $）Rydberg Atoms激动于$^{84} $ SR Bose-sr Bose-einstein Condensate激发
Loss rates for high-$n$, $49\lesssim n \lesssim150$, 5sns($^{3}$S$_{1}$) Rydberg atoms excited in an $^{84}$Sr Bose-Einstein condensate
论文作者
论文摘要
Measurements of the loss rates for strontium n$^{3}$S$_{1}$ Rydberg atoms excited in a dense BEC are presented for values of principal quantum number $n$ in the range $49\lesssim n \lesssim 150$ and local atom densities of $\sim1$ to $3\times10^{14}$cm$^{-3}$.两个主要过程导致损失，关联电离和改变状态。研究了这两个损失通道的相对重要性，并使用一个模型讨论了密度依赖性，其中Rydberg Atom损失被认为涉及Rydberg核心离子与地面原子之间的密切相撞。将目前的测量与使用Rubidium Rydberg原子获得的早期结果进行了比较。对于这两种物种，观察到的损失率很高，$ \ sim10^{5} -10^{6} $ s $^{ - 1} $，并限制可以进行涉及涉及rydberg原子的测量结果，可以进行沉浸在量子退化气体中的rydberg原子。
Measurements of the loss rates for strontium n$^{3}$S$_{1}$ Rydberg atoms excited in a dense BEC are presented for values of principal quantum number $n$ in the range $49\lesssim n \lesssim 150$ and local atom densities of $\sim1$ to $3\times10^{14}$cm$^{-3}$. Two main processes contribute to loss, associative ionization and state-changing. The relative importance of these two loss channels is investigated and their $n$- and density-dependences are discussed using a model in which Rydberg atom loss is presumed to involve a close collision between the Rydberg core ion and ground-state atoms. The present measurements are compared to earlier results obtained using rubidium Rydberg atoms. For both species the observed loss rates are sizable, $\sim10^{5}-10^{6}$s$^{-1}$, and limit the time scales over which measurements involving Rydberg atoms immersed in quantum degenerate gases can be conducted.
