Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 47: Quantum Information: Quantum Computer
Q 47.3: Vortrag
Donnerstag, 17. März 2011, 11:00–11:15, BAR Schön
Deterministic entanglement of ions in separate traps — •Maximilian Harlander1, Regina Lechner1, Michael Brownnutt1, Wolfgang Hänsel1,2, and Rainer Blatt1,2 — 1Institut für Experimentalphysik, Universität Innsbruck — 2Institut für Quantunoptik und Quanteninformationsbearbeitung, Innsbruck
Trapped-ion systems are a promising candidate to experimentally realize a powerful quantum information processor. A major challenge achieving this goal is scaling such systems to large numbers of ions. In 2000 Cirac and Zoller presented a route to interconnect neighbouring, independently trapped ions by using the small dipole moment of their oscillations as a quantum-mechanical link. Since the dipole-dipole interaction strength between ions at distance d scales with 1/d3, microfabrication techniques are neccessary to create separate potential wells at distances at the scale of tens of microns. The experimental demonstration of quantum information exchange is reported between ions in two potential wells separated by 54 µm. This enables possible schemes to provide entangling gates between two trapping zones, using a Mølmer-Sørensen type interaction.