Journal
MOLECULAR PHYSICS
Volume 118, Issue 2, Pages -Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00268976.2019.1679401
Keywords
Rydberg atoms; ultracold gases; atomic and molecular collision processes; electron scattering
Funding
- German Research Foundation (Deutsche Forschungsgemeinschaft) within the priority programme 'Giant Interactions in Rydberg Systems' [DFG SPP 1929]
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We review ultralong-range Rydberg molecules (ULRMs), which are bound states between a Rydberg atom and one or more ground-state atoms with bond lengths on the order of thousands of Bohr radii. The binding originates from multiple electron-atom scattering and leads to exotic oscillatory potential energy surfaces that reflect the probability density of the Rydberg electron. This unconventional binding mechanism opens fascinating possibilities to tune molecular properties via weak external fields, to study spin-resolved low-energy electron-atom scattering as well as to control and to probe interatomic forces in few- and many-body systems. Here, we provide an overview on recent theoretical and experimental progress in the field with an emphasis on polyatomic ULRMs, field control and spin interactions.
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