382 citations · 1.4k across the 19 of their papers we have counts for
9 papers · 1 filter
Experimental setup for studying an ultracold mixture of trapped Yb-Li
H. Hirzler, T. Feldker, H. Fürst +7
We describe and characterize an experimental apparatus that has been used to study interactions between ultracold lithium atoms and ytterbium ions. The preparation of ultracold clo…
Observation of Interactions between Trapped Ions and Ultracold Rydberg Atoms
N. V. Ewald, T. Feldker, H. Hirzler +2
We report on the observation of interactions between ultracold Rydberg atoms and ions in a Paul trap. The rate of observed inelastic collisions, which manifest themselves as charge…
Prospects of reaching the quantum regime in Li-Yb mixtures
H. A. Fürst, N. V. Ewald, T. Secker +3
We perform numerical simulations of trapped Yb ions that are buffer gas cooled by a cold cloud of Li atoms. This species combination has been suggested to be the mo…
Dynamics of a single ion spin impurity in a spin-polarized atomic bath
Henning Fürst, Thomas Feldker, Norman Vincenz Ewald +3
We report on observations of spin dynamics in single Yb ions immersed in a cold cloud of spin-polarized Li atoms. This species combination has been proposed to be the most…
Spectroscopy of the transition in Yb II: Isotope shifts, hyperfine splitting and branching ratios
Thomas Feldker, Henning Fürst, Norman Ewald +2
We report on spectroscopic results on the transition in single trapped Yb ions. We measure the isotope shifts for all stable Yb isotopes…
Observation of collisions between cold Li atoms and Yb ions
J. Joger, H. Fürst, N. Ewald +3
We report on the observation of cold collisions between Li atoms and Yb ions. This combination of species has recently been proposed as the most suitable for reaching the q…
Trapped ions in Rydberg-dressed atomic gases
T. Secker, N. Ewald, J. Joger +3
We theoretically study trapped ions that are immersed in an ultracold gas of Rydberg-dressed atoms. By off-resonant coupling on a dipole-forbidden transition, the adiabatic atom-io…
Heteronuclear collisions between laser-cooled metastable neon atoms
Jan Schütz, Thomas Feldker, Holger John +1
We investigate heteronuclear collisions in isotope mixtures of laser-cooled metastable 3P2 neon. Experiments are performed with spin-polarized atoms in a magnetic trap for all two-…
Rydberg excitation of trapped cold ions: A detailed case study
F. Schmidt-Kaler, T. Feldker, D. Kolbe +5
We provide a detailed theoretical and conceptual study of a planned experiment to excite Rydberg states of ions trapped in a Paul trap. The ultimate goal is to exploit the strong s…