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- Centre National de la Recherche ScientifiqueFR670 papers
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10 papers · 2 filters
Sympathetic cooling schemes for separately trapped ions coupled via image currents
C. Will, M. Bohman, T. Driscoll +18
Cooling of particles to mK-temperatures is essential for a variety of experiments with trapped charged particles. However, many species of interest lack suitable electronic transit…
A Digital Feedback System for Advanced Ion Manipulation Techniques in Penning Traps
Jost Herkenhoff, Menno Door, Pavel Filianin +7
The possibility to apply active feedback to a single ion in a Penning trap using a fully digital system is demonstrated. Previously realized feedback systems rely on analog circuit…
Sympathetic cooling of a trapped proton mediated by an LC circuit
M. Bohman, V. Grunhofer, C. Smorra +18
Efficient cooling of trapped charged particles is essential to many fundamental physics experiments, to high-precision metrology, and to quantum technology. Until now, sympathetic…
Molecular structure retrieval directly from laboratory-frame photoelectron spectra in laser-induced electron diffraction
A. Sanchez, K. Amini, S. -J. Wang +12
Ubiquitous to most molecular scattering methods is the challenge to retrieve bond distance and angle from the scattering signals since this requires convergence of pattern matching…
Two-photon exchange corrections to the factor of Li-like ions
V. A. Yerokhin, C. H. Keitel, Z. Harman
We report calculations of QED corrections to the factor of Li-like ions induced by the exchange of two virtual photons between the electrons. The calculations are performed wit…
High-resolution Laboratory Measurements of K-shell X-ray Line Polarization and Excitation Cross Sections in Heliumlike S XV Ions
Chintan Shah, Natalie Hell, Antonia Hubbard +8
We report measurements of electron-impact excitation cross sections for the strong K-shell n=2-1 transitions in S XV using the LLNL EBIT-I electron beam ion trap, two crystal spect…