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Trapped-ion antennae for the transmission of quantum information
Maximilian Harlander, Regina Lechner, Michael Brownnutt +2
More than one hundred years ago Heinrich Hertz succeeded in transmitting signals over a few meters to a receiving antenna using an electromagnetic oscillator and thus proving the e…
14-qubit entanglement: creation and coherence
Thomas Monz, Philipp Schindler, Julio T. Barreiro +7
We report the creation of Greenberger-Horne-Zeilinger states with up to 14 qubits. By investigating the coherence of up to 8 ions over time, we observe a decay proportional to the…
Trapped-ion probing of light-induced charging effects on dielectrics
Maximilian Harlander, Michael Brownnutt, Wolfgang Hänsel +1
We use a string of confined Ca ions to measure perturbations to a trapping potential which are caused by light-induced charging of an anti-reflection coated window and o…