121 citations · 769 across the 17 of their papers we have counts for
4 papers · 1 filter
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…
Implications of surface noise for the motional coherence of trapped ions
I. Talukdar, D. J. Gorman, N. Daniilidis +5
Electric noise from metallic surfaces is a major obstacle towards quantum applications with trapped ions due to motional heating of the ions. Here, we discuss how the same noise so…
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…
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…