465 citations · 1.2k across the 16 of their papers we have counts for
16 papers
Sub-barrier peaks in atom-atom-ion three-body recombination
Fabian Thielemann, Joachim Siemund, Tobias Schaetz +1
Hybrid atom-ion experiments have recently entered the few-partial wave regime in which magnetically tunable Feshbach resonances dominate the three-body loss dynamics. This necessit…
Quantum statistics on atom-ion Feshbach resonances
Joachim Siemund, Fabian Thielemann, Jonathan Grieshaber +5
We investigate three-body recombination in a hybrid atom-ion system consisting of a single trapped Ba ion immersed in a two-component Fermi gas of Li atoms near an atom-ion Fes…
Magnetic Feshbach resonances in Ba+Li collisions due to strong spin-orbit coupling
Masato Morita, Joachim Siemund, Wei Wu +8
We report a pronounced dependence of magnetic Feshbach resonance spectra on the initial hyperfine-Zeeman state of Li in ultracold Ba+Li collisions. The measured num…
Observing Time-Dependent Energy Level Renormalisation in an Ultrastrongly Coupled Open System
Alessandra Colla, Florian Hasse, Deviprasath Palani +3
Understanding how strong coupling and memory effects influence the energy levels of open quantum systems is a complex and challenging problem. Here, we show these effects by probin…
Competing excitation quenching and charge exchange in ultracold Li-Ba collisions
Xiaodong Xing, Pascal Weckesser, Fabian Thielemann +9
Hybrid atom-ion systems are a rich and powerful platform for studying chemical reactions, as they feature both excellent control over the electronic state preparation and readout a…
Exploring atom-ion Feshbach resonances below the s-wave limit
Fabian Thielemann, Joachim Siemund, Daniel von Schoenfeld +5
Revealing the quantum properties of matter requires a high degree of experimental control accompanied by a profound theoretical understanding. At ultracold temperatures, quantities…