772 citations · 8.8k across the 160 of their papers we have counts for
6 papers · 1 filter
Cryogenic setup for trapped ion quantum computing
M. F. Brandl, M. W. van Mourik, L. Postler +15
We report on the design of a cryogenic setup for trapped ion quantum computing containing a segmented surface electrode trap. The heat shield of our cryostat is designed to attenua…
Fast ion swapping for quantum information processing
Henning Kaufmann, Thomas Ruster, Christian T. Schmiegelow +6
We demonstrate a SWAP gate between laser-cooled ions in a segmented microtrap via fast physical swapping of the ion positions. This operation is used in conjunction with qubit init…
A long-lived Zeeman trapped-ion qubit
Thomas Ruster, Christian T. Schmiegelow, Henning Kaufmann +3
We demonstrate a coherence time of 2.1(1)~s for electron spin superposition states of a single trapped Ca ion. The coherence time, measured with a spin-echo experiment,…
Maximizing the information gain of a single ion microscope using bayes experimental design
Georg Jacob, Karin Groot-Berning, Ulrich G. Poschinger +2
We show nanoscopic transmission microscopy, using a deterministic single particle source and compare the resulting images in terms of signal-to-noise ratio, with those of conventio…
Investigation of two-frequency Paul traps for antihydrogen production
Nathan Leefer, Kai Krimmel, William Bertsche +5
Radio-frequency (rf) Paul traps operated with multifrequency rf trapping potentials provide the ability to independently confine charged particle species with widely different char…
Towards Rydberg quantum logic with trapped ions
P. Bachor, T. Feldker, J. Walz +1
We demonstrate the excitation of ions to the Rydberg state by vacuum ultraviolet radiation at a wavelength of combined with the coherent manipulation of the…