PYRAMIDAL-HOLLOW-BEAM DIPOLE TRAP FOR ALKALI ATOMS
Yin Jian-ping (印建平)ab, Gao Wei-jian (高伟建)b, Wang Yu-zhu (王育竹)a, Zhu Yi-fu (朱一夫)c, Wang Yi-qiu (王义遒)d
a Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; b Department of Physics, Suzhou University, Suzhou 215006, China; c Department of Physics, Florida International University, Miami, Florida 33199, USA; d Department of Electronics, Peking University, Beijing 100871, China
Abstract We propose a dark gravito-optical dipole trap, for alkali atoms, consisting of a blue-detuned, pyramidal-hollow laser beam propagating upward and the gravity field. When cold atoms from a magneto-optical trap are loaded into the pyramidal-hollow beam and bounce inside the pyramidal-hollow beam, they experience efficient Sisyphus cooling and geometric cooling induced by the pyramidal-hollow beam and the weak repumping beam propagating downward. Our study shows that an ultracold and dense atomic sample with an equilibrium 3D momentum of ～3 $\hbar$ $k$ and an atomic density above the point of Bose-Einstein condensation may be obtained in this pure optical trap.
Received: 04 April 1999
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 69878019 and 19834060), the Ministry of Science and Technology of China (Grant No. 95-yu-34), and the Natural Science Foundation of Jiangsu Province, China (Grant No. DK9713
Cite this article:
Yin Jian-ping (印建平), Gao Wei-jian (高伟建), Wang Yu-zhu (王育竹), Zhu Yi-fu (朱一夫), Wang Yi-qiu (王义遒) PYRAMIDAL-HOLLOW-BEAM DIPOLE TRAP FOR ALKALI ATOMS 2000 Chinese Physics 9 342
Dynamic polarizabilities of the clock states of Al+ Yuan-Fei Wei(魏远飞), Zhi-Ming Tang(唐志明), Cheng-Bin Li(李承斌), Yang Yang(杨洋), Ya-Ming Zou(邹亚明), Kai-Feng Cui(崔凯枫), and Xue-Ren Huang(黄学人). Chin. Phys. B, 2022, 31(8): 083102.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
