Collisional cross-sections measurement of ultracold caesium Rydberg states

被引：8

作者：

Feng, Zhi-Gang ^{[1
]}

Zhang, Lin-Jie ^{[1
]}

Zhang, Hao ^{[1
]}

Zhao, Jian-Ming ^{[1
]}

Li, Chang-Yong ^{[1
]}

Jia, Suo-Tang ^{[1
]}

机构：

[1] Shanxi Univ, Coll Phys & Elect Engn, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China

来源：

EPL | 2010年 / 92卷 / 01期

基金：

中国国家自然科学基金;

关键词：

HYPERFINE STRUCTURES; BLACKBODY RADIATION; ENERGY-TRANSFER; RUBIDIUM ATOMS; LIFETIMES; DEPOPULATION;

D O I：

10.1209/0295-5075/92/13002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the total collisional cross-sections of caesium Rydberg nD (n = 37-40) states by measuring the corresponding effective decay rates versus Rydberg atoms density in a conventional magneto-optical trap using the state-selective pulse field ionization technique. The results indicate that the large collisional cross-sections mainly come from the contribution of Rydberg atoms interactions. We also obtain the spontaneous radiative lifetimes of different Rydberg states by fitting experimental data, which are in agreement with the existing theoretical values within experimental error. Copyright (C) EPLA, 2010

引用

页数：6

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