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42 papers
Electric-field control of atom-molecule Feshbach resonances
Mara Meyer zum Alten Borgloh, Jule Heier, Fritz von Gierke +4
Ultracold molecules provide opportunities for exploring quantum matter, chemical dynamics and information processing thanks to their rich interactions, which can be controlled by e…
Optical formation of ultracold NaK ground state molecules
Baraa Shammout, Leon Karpa, Silke Ospelkaus +2
We study the rovibronic transitions in NaK between its electronic ground state and its second excited state , to identify possible pathways for the creation of u…
Formation of ultracold triatomic molecules by electric microwave association
Baraa Shammout, Leon Karpa, Silke Ospelkaus +2
A theoretical model is proposed for the formation of ultracold ground-state triatomic molecules in weakly bound energy levels. The process is driven by the electric component of a…
Blue-detuned molecular magneto-optical trap schemes based on bayesian optimization
S. Xu, R. Li, Y. Zhai +3
Direct laser cooling and trapping of molecules to temperature below Doppler limit and density exceeding are challenging due to the sub-Doppler heating effects of molecular m…
Modeling photoassociative spectra of ultracold NaK+K
Baraa Shammout, Leon Karpa, Silke Ospelkaus +2
A model for photoassociation of ultracold atoms and molecules is presented, and applied to the case of K and NaK bosonic particles. The model relies on the ass…
Two-photon optical shielding of collisions between ultracold polar molecules
Charbel Karam, Mara Meyer zum Alten Borgloh, Romain Vexiau +5
We propose a method to engineer repulsive long-range interactions between ultracold ground-state molecules using optical fields, thus preventing short-range collisional losses. It…