Observation of pendular butterfly Rydberg molecules.

Observation of pendular butterfly Rydberg molecules.
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DOI:
10.1038/ncomms12820
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发表时间:
2016-10-05
影响因子:
16.6
通讯作者:
Ott, Herwig
Ott, Herwig
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Niederpruem, Thomas;Thomas, Oliver;Eichert, Tanita;Lippe, Carsten;Perez-Rios, Jesus;Greene, Chris H.;Ott, Herwig

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工程分子具有可调的键长和定义的量子态是量子化学的核心。Rydberg分子的非常规结合机制使其成为实现这种可调分子的有希望的候选者。里德伯分子的一个非常特殊的类型是所谓的蝴蝶分子,它是由电子微扰散射中的形状共振束缚的。在这里,我们报告这些外来分子的观察,并利用他们的特殊性质,工程师在一个小电场中的键长,振动状态,角动量和取向。结合可变的键长和几百德拜的巨大偶极矩,我们观察到了反直觉的分子,它们的平均电子位置超过了核间距。 里德伯分子具有非常规的结合机制,提供了高的可调谐性,具有潜在的超冷化学应用。在这里,作者观察和控制蝴蝶里德伯分子,这是由电子微扰散射的形状共振约束。
Engineering molecules with a tunable bond length and defined quantum states lies at the heart of quantum chemistry. The unconventional binding mechanism of Rydberg molecules makes them a promising candidate to implement such tunable molecules. A very peculiar type of Rydberg molecules are the so-called butterfly molecules, which are bound by a shape resonance in the electron–perturber scattering. Here we report the observation of these exotic molecules and employ their exceptional properties to engineer their bond length, vibrational state, angular momentum and orientation in a small electric field. Combining the variable bond length with their giant dipole moment of several hundred Debye, we observe counter-intuitive molecules which locate the average electron position beyond the internuclear distance. Rydberg molecules have potential for ultracold chemistry applications in light of their unconventional binding mechanism that provides high tunability. Here the authors observe and control butterfly Rydberg molecules, which are bound by a shape resonance in the electron-perturber scattering.
DOI: 10.1126/science.1211255
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期刊: SCIENCE
影响因子: 56.9
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