103 citations · 645 across the 20 of their papers we have counts for
12 papers · 1 filter
Full molecular dynamics simulations of a single trapped ion in a neutral bath
Saajid Chowdhury, Ruiren Shi, Jesús Pérez-Ríos
We present full molecular dynamics simulations that explicitly incorporate the simultaneous interactions between a trapped ion and a bath of neutral atoms. In contrast to conventio…
Precision Positronium Spectroscopy as a Test of the Helium Ionization Energy Anomaly
J. Pérez-Ríos, D. B. Cassidy
Precise measurements of the metastable helium (1s)(2s) ionization energy have revealed a 9 discrepancy with QED theory that persists in isotopic measurements, suggestin…
Ion-atom-atom three-body recombination: from the cold to the thermal regime
Marjan Mirahmadi, Jesús Pérez-Ríos
We present a study on ion-atom-atom reaction A+A+B in a wide range of systems and collision energies ranging from 100K to 10K, analyzing the two possible products: mol…
Life and death of a cold BaRb molecule inside an ultracold cloud of Rb atoms
Amir Mohammadi, Artjom Krükow, Amir Mahdian +6
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,…
Ultracold Molecule Assembly with Photonic Crystals
J. Pérez-Ríos, May E. Kim, Chen-Lung Hung
Photoassociation (PA) is a powerful technique to synthesize molecules directly and continuously from cold and ultracold atoms into deeply bound molecular states. In freespace, howe…
Observation of pendular butterfly Rydberg molecules
Thomas Niederprüm, Oliver Thomas, Tanita Eichert +4
Obtaining full control over the internal and external quantum states of molecules is the central goal of ultracold chemistry and allows for the study of coherent molecular dynamics…
Ultracold molecular Rydberg physics in a high density environment
Matthew T Eiles, Jesus Perez-Rios, F Robicheaux +1
Sufficiently high densities in Bose-Einstein condensates provide favorable conditions for the production of ultralong-range polyatomic molecules consisting of one Rydberg atom and…
Probing a scattering resonance in Rydberg molecules with a Bose-Einstein condensate
Michael Schlagmüller, Tara Cubel Liebisch, Huan Nguyen +10
We present spectroscopy of a single Rydberg atom excited within a Bose-Einstein condensate. We not only observe the density shift as discovered by Amaldi and Segre in 1934, but a l…
Energy scaling of cold atom-atom-ion three-body recombination
Artjom Krükow, Amir Mohammadi, Arne Härter +3
We study three-body recombination of Ba + Rb + Rb in the mK regime where a single Ba ion in a Paul trap is immersed into a cloud of ultracold Rb atoms. We…
Theory of long-range ultracold atom-molecule photoassociation
Jesús Pérez-Ríos, Maxence Lepers, Olivier Dulieu
The creation of ultracold molecules is currently limited to diatomic species. In this letter we present a theoretical description of the photoassociation of ultracold atoms and mol…
Quantum Defect Theory description of weakly bound levels and Feshbach resonances in LiRb
Jesús Pérez-Ríos, Sourav Dutta, Yong P. Chen +1
The multichannel quantum defect theory (MQDT) in combination with the frame transformation (FT) approach is applied to model the Fano-Feshbach resonances measured for Li$^{87…
Formation of ultracold LiRb molecules in the lowest triplet electronic state by photoassociation and their detection by ionization spectroscopy
Adeel Altaf, Sourav Dutta, John Lorenz +3
We report the formation of ultracold LiRb molecules in the electronic state by photoassociation (PA) and their detection via resonantly enhanced multiphot…