Bibliographic Details
| Title: |
Investigation of ultracold atoms and molecules in a dark magneto-optical trap. |
| Authors: |
Wang Li-Rong1 wlr@sxu.edu.cn, Ji Zhong-Hua1, Yuan Jin-Peng1, Yang Yan1, Zhao Yan-Ting1, Ma Jie1, Xiao Lian-Tuan1, Jia Suo-Tang1 |
| Source: |
Chinese Physics B. Nov2012, Vol. 21 Issue 11, p1-5. 5p. |
| Subjects: |
Atoms, Ultracold molecules, Magnetooptics, Cesium, Ground state (Quantum mechanics), Collisions (Physics), Vibrational spectra, Quantum perturbations |
| Abstract: |
In this paper, ultracold atoms and molecules in a dark magneto-optical trap (MOT) are studied via depumping the cesium cold atoms into the dark hyperfine ground state. The collision rate is reduced to 0.45 s-1 and the density of the atoms is increased to 5:6 ✕ 1011 cm-3 when the fractional population of the atoms in the bright hyperfine ground state is as low as 0.15. The vibrational spectra of the ultracold cesium molecules are also studied in a standard MOT and in a dark MOT separately. The experimental results are analyzed by using the perturbative quantum approach. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
