Hannover 2013 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 32: Quantum information: Atoms and ions III
Q 32.4: Talk
Tuesday, March 19, 2013, 15:00–15:15, A 310
Controlled emission and absorption of single photons by two distant single ions — •Michael Schug1, Jan Huwer1,2, Christoph Kurz1, Philipp Müller1, and Jürgen Eschner1 — 1Universität des Saarlandes, Experimentalphysik, Campus E2 6, 66123 Saarbrücken, Germany — 2ICFO - Institut de Ciences Fotoniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain
A prerequisite for the realization of a quantum network is controlled emission and absorption of single photons by a single atom. Here we present controlled quantum interaction between two remotely trapped calcium ions by single photons. We release a single photon with controlled temporal shape from the sender ion and transmit it over one meter distance to the receiver ion. There we detect photon absorption with a quantum jump scheme. In continuous photon generation mode, the absorption reduces significantly the lifetime of the long lived D5/2 state at the receiver ion. For triggered photon generation, we observe coincidences between the quantum jump event and the emission trigger of a photon.