activity
20162022
most citedBuffer gas cooling of a trapped ion to the quantum regime

89 citations · 326 across the 9 of their papers we have counts for

collaborators

9 papers

quant-ph2022★ 10 cited

Optimization and readout-noise analysis of a warm vapor EIT memory on the Cs D1 line

Luisa Esguerra, Leon Meßner, Elizabeth Robertson +3

Quantum memories promise to enable global quantum repeater networks. For field applications, alkali metal vapors constitute an exceptional storage platform, as neither cryogenics,…

physics.atom-ph2020★ 11 cited

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…

quant-ph2019★ 89 cited

Buffer gas cooling of a trapped ion to the quantum regime

T. Feldker, H. Fürst, H. Hirzler +5

Great advances in precision quantum measurement have been achieved with trapped ions and atomic gases at the lowest possible temperatures. These successes have inspired ideas to me…

physics.atom-ph2018★ 38 cited

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…

physics.atom-ph2018★ 32 cited

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…

physics.atom-ph2017★ 39 cited

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…

physics.atom-ph2017★ 15 cited

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…

physics.atom-ph2017★ 62 cited

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…

physics.atom-ph2016★ 30 cited

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…