Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 33: Precision spectroscopy of atoms and ions I

Q 33.1: Hauptvortrag

Dienstag, 13. März 2012, 14:00–14:30, V55.01

Single-photon interference experiments with single ions — •Gabriel Hétet1, Lukas Slodicka1, Nadia Rock1, Markus Hennrich1, and Rainer Blatt1,21Institute for Experimental Physics, University of Innsbruck, A-6020 Innsbruck, Austria — 2Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria

We present experiments that study the interaction of single Barium ions with single photons and weak coherent fields in front of high-numerical aperture optical elements.

First, we show the experimental observation of the ion as the optical mirror of a Fabry-Perot cavity. This was achieved by tightly focussing a laser field onto the ion trapped in front of a far-distant dielectric mirror. We then demonstrate the very first steps towards entanglement of two far-distant ions using only single-photon detection events. Last, we will present our current efforts in the design of ion traps with even higher numerical aperture objectives and mirrors for efficient single photon collection and high entanglement rates.

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