Optical atomic clocks are the most accurate measurement devices ever constructed and
have found many applications in fundamental science and technology,–. The use of highly …

The last decade has seen unprecedented effort in dark matter model building at all mass
scales coupled with the design of numerous new detection strategies. Transformative …

Optical frequency metrology in atoms and ions can probe hypothetical fifth forces between
electrons and neutrons by sensing minute perturbations of the electronic wave function …

Charged microparticles confined in electrodynamic traps evolve into strongly coupled
Coulomb systems (SCCS) which are the subject of current investigation. Recent results with …

We demonstrate co-trapping and sideband cooling of a H 2+-Be 9+ ion pair in a cryogenic
Paul trap. We study the chemical lifetime of H 2+ and its dependence on the apparatus …

In recent demonstrations of the quantum charge-coupled device computer architecture,
circuit times are dominated by cooling. Some motional modes of multi-ion crystals take …

Promising searches for new physics beyond the current standard model (SM) of particle
physics are feasible through isotope-shift spectroscopy, which is sensitive to a hypothetical …

Cooling the motion of trapped ions to near the quantum ground state is crucial for many
applications in quantum information processing and quantum metrology. However, certain …

Recent advances in high-precision spectroscopy of highly charged ions necessitate an
understanding of energy shifts of ionic levels caused by external electric and magnetic …

We report continuous Raman sideband cooling of a long ion chain close to the motional
ground state beyond the Lamb-Dicke (LD) regime. By driving multiple sideband transitions …