Hannover 2013 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 35: Poster I
Q 35.41: Poster
Tuesday, March 19, 2013, 16:00–18:30, Empore Lichthof
Controlled interactions of two ions with an optical cavity — •Konstantin Friebe1, Bernardo Casabone1, Andreas Stute1, Birgit Brandstätter1, Klemens Schüppert1, Tracy Northup1, and Rainer Blatt1,2 — 1Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Österreich — 2Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Otto-Hittmair-Platz 1, 6020 Innsbruck, Österreich
We explore the integration of optical resonators and ion traps in the context of quantum networks. We have recently demonstrated entanglement between a single trapped ion and a cavity photon as well as state mapping from the ion to the polarization state of the photon. Here we present results with two trapped ions coupled to the same cavity mode. By changing the position of the ions in the cavity standing wave, the ions’ respective coupling to the mode can be accurately controlled.
By encoding a single qubit across both ions, the coupling of the qubit to the cavity mode can be increased by a factor of √2, which enables higher fidelities for state mapping from the stationary qubit to a photon. We present our plans in this direction as well as a scheme for generation of photonic cluster states as resources for measurement-based quantum computation in our setup.