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arXiv quant-ph/0401125quant-ph
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铬原子和铷原子的双粒子阱

A two species trap for chromium and rubidium atoms

Sven Hensler, Axel Griesmaier, Jörg Werner, Axel Görlitz, Tilman Pfau

摘要:

我们实现了玻色铬原子52 Cr和铷原子87 Rb的复合陷阱。第一个实验的重点是探索一个合适的加载方案的组合陷阱和研究新的陷阱损失机制,同时捕获两个物种。通过比较基态~(52)Cr原子与~(87)Rb磁光阱(MOT)中的陷阱损耗,确定了~(87)Rb与~(52)Cr原子光致非弹性碰撞的散射截面为sigma_{inelRbCr} =(5.0+-4.0)× 10^{-18 m ^2.研究了Cr冷却激光诱导Rb磁光陷阱的陷阱损耗,测量了5 P_{3/2}激发态在426 nm电离波长处的光电离截面为sigma_{p} =(1.1+-0.3)× 10^{-21 m ^2。

英文摘要:

We realize a combined trap for bosonic chromium 52Cr and rubidium 87Rb atoms. First experiments focus on exploring a suitable loading scheme for the combined trap and on studies of new trap loss mechanisms originating from simultaneous trapping of two species. By comparing the trap loss from the 87Rb magneto-optical trap (MOT) in absence and presence of magnetically trapped ground state 52Cr atoms we determine the scattering cross section of sigma_{inelRbCr}=(5.0+-4.0)*10^{-18}m^2 for light induced inelastic collisions between the two species. Studying the trap loss from the Rb magneto-optical trap induced by the Cr cooling-laser light, the photoionization cross section of the excited 5P_{3/2} state at an ionizing wavelength of 426nm is measured to be sigma_{p}=(1.1+-0.3)*10^{-21}m^2.

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。

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