283 citations · 2.5k across the 54 of their papers we have counts for
7 papers · 1 filter
Microscopy with a Deterministic Single Ion Source
Georg Jacob, Karin Groot-Berning, Sebastian Wolf +6
We realize a single particle microscope by using deterministically extracted laser cooled Ca ions from a Paul trap as probe particles for transmission imaging. We demons…
Excitation of an Atomic Transition with a Vortex Laser Beam
Christian T. Schmiegelow, Jonas Schulz, Henning Kaufmann +3
Photons carry one unit of angular momentum associated with their spin~\cite{Beth1936}. Structured vortex beams carry additional orbital angular momentum which can also be transferr…
A Quantum Repeater Node with Trapped Ions: A Realistic Case Example
Andreas Daniel Pfister, Marcel Salz, Max Hettrich +2
We evaluate the feasibility of the implementation of two quantum repeater protocols with an existing experimental platform based on a Ca-ion in a segmented micro trap, a…
Phase-stable free-space optical lattices for trapped ions
Christian Tomas Schmiegelow, Henning Kaufmann, Thomas Ruster +5
We demonstrate control of the absolute phase of an optical lattice with respect to a single trapped ion. The lattice is generated by off-resonant free-space laser beams, we activel…
Fast separation of two trapped ions
M. Palmero, S. Martínez-Garaot, U. G. Poschinger +2
We design fast protocols to separate or recombine two ions in a segmented Paul trap. By inverse engineering the time evolution of the trapping potential composed of a harmonic and…
Measurement of dipole matrix elements with a single trapped ion
M. Hettrich, T. Ruster, H. Kaufmann +4
We demonstrate a new method for the direct measurement of atomic dipole transition matrix elements based on techniques developed for quantum information purposes. The scheme consis…