12 citations · 20 across the 6 of their papers we have counts for
6 papers
A robust method to reach the motional quantum regime of (anti-)protons in cryogenic multi-Penning traps
Nikita Poljakov, Jan Schaper, Julia-Aileen Coenders +5
Sympathetic laser cooling is a key concept in precision spectroscopy and quantum state control of charged particles. Significant challenges arise in the metrologically relevant cas…
Full Single-Quantum Control of Particles in Penning Traps for Symmetry Tests at the Quantum Limit
J. M. Cornejo, J. -A. Coenders, A. Lissel +9
The BASE collaboration aims to measure antimatter systems with the highest precision in order to perform a rigorous test of CPT symmetry and search for physics beyond the Standard…
Resolved-sideband cooling of a single Be ion in a Penning trap
Juan M. Cornejo, Johannes Brombacher, Julia A. Coenders +5
Manipulating individual trapped ions at the single quantum level has become standard practice in radio-frequency ion traps, enabling applications from quantum information processin…
Fast adiabatic transport of single laser-cooled Be ions in a cryogenic Penning trap stack
T. Meiners, J. -A. Coenders, J. Mielke +4
High precision mass and -factor measurements in Penning traps have enabled groundbreaking tests of fundamental physics. The most advanced setups use multi-trap methods, which em…
Optical stimulated-Raman sideband spectroscopy of a single Be ion in a Penning trap
J. M. Cornejo, J. Brombacher, J. -A. Coenders +5
We demonstrate optical sideband spectroscopy of a single Be ion in a cryogenic 5 Tesla Penning trap using two-photon stimulated-Raman transitions between the two Zeeman sub…
139 GHz UV phase-locked Raman laser system for thermometry and sideband cooling of Be ions in a Penning trap
Johannes Mielke, Julian Pick, Julia A. Coenders +5
We demonstrate phase locking of two ultraviolet laser sources by modulating a fundamental infrared laser with 4th-order sidebands using an electro-optic modulator and phase locking…