Ultracold Rydberg molecules
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Updated: Feb 10, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
J P Shaffer1, S T Rittenhouse2, H R Sadeghpour3
1Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, 440 W Brooks Street, Norman, OK, 73019, USA. shaffer@nhn.ou.edu.
Abstract:
Ultracold molecules formed from association of a single Rydberg atom with surrounding atoms or molecules and those from double Rydberg excitations are discussed in this review. Ultralong-range Rydberg molecules possess a novel molecular bond resulting from scattering of the Rydberg electron from the perturber atoms or molecules. The strong interactions between Rydberg atoms in ultracold gases may lead to formation of macroscopic Rydberg macrodimers. The exquisite control over the properties of the Rydberg electron means that interesting and unusual few-body and quantum many-body features can be realized in such systems.
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