Life and death of a cold BaRb+ molecule inside an ultracold cloud of Rb atoms
Life and death of a cold
BaRb+
molecule inside an ultracold cloud of Rb atoms
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超冷 Rb 原子云内冷 BaRb 分子的生与死
DOI:
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
J. Hecker Denschlag
中科院分区:
文献类型:
--
作者:
Amir Mohammadi;A. Krükow;A. Mahdian;M. Deiss;J. Pérez;H. da Silva;M. Raoult;O. Dulieu;J. Hecker Denschlag
We study the evolution of a single BaRb$^+$ molecule while it continuously collides with ultracold Rb atoms. The initially weakly-bound molecule can undergo a sequence of elastic, inelastic, reactive, and radiative processes. We investigate these processes by developing methods for discriminating between different ion species, electronic states, and kinetic ion energy ranges. By comparing the measurements to model calculations we obtain a consistent description of the typical trajectory of the ion through the manifold of available atomic and molecular states. As a further result, we determine rates for collisional and radiative relaxation as well as photodissociation, spin-flip collisions, and chemical reactions.
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