The temperature measurement for the ultracold Cs2 molecules formed by photoassociation

Author:

Zhao Yan-Ting ,Yuan Jin-Peng ,Ji Zhong-Hua ,Li Zhong-Hao ,Meng Teng-Fei ,Liu Tao ,Xiao Lian-Tuan ,Jia Suo-Tang , ,

Abstract

Ultracold Cs2 molecules have been formed by photoassociation. Using the multiphoton ionization technique, we measure the time-evolution of expanding process in ultracold Cs2 molecule system and obtain the decay curve of photoionization signals. Based on a simple case, where the initial distribution of atomic or molecular sample is a Gaussian function of position and of velocity, we get the sample's temperature by theoretical simulation. The result shows a reasonable agreement with the result of release-recapture method in cold atom sample. This method avoids the disadvantage of detecting the weakly fluorescence and can be widely used for measuring the temperature in cold atom or cold molecule system.

Publisher

Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences

Subject

General Physics and Astronomy

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Adiabatic conversion of ultracold atoms into molecules via square-shaped pulse field;Acta Physica Sinica;2018

2. 3D optical lattices cooling of ultracold Cs atoms;SCIENTIA SINICA Physica, Mechanica & Astronomica;2017-02-13

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