Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 35: Poster I
Q 35.14: Poster
Dienstag, 19. März 2013, 16:00–18:30, Empore Lichthof
Multi-mode cooling in anharmonic ion traps — •Regina Lechner1, Philip Holz1, Maximilian Harlander1, Thomas Monz1, Michael Brownnutt1, and Rainer Blatt1,2 — 1Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, A-6020 Innsbruck, Austria — 2Institut für Quantenoptik und Quanteninformation der Österreichischen Akademie der Wissenschaften, Techniekrstraße 21a, A-6020 Innsbruck, Austria
The ultimate usefulness of quantum computation is strongly bound to scalability. One standard route towards scalable architectures is by miniaturizing and segmenting traps. With such traps being used in various groups throughout the community, longer ion chains came into the focus of interest. With increasing ion numbers within a chain the number of motional modes increases too. However, in order to make use of ions and the ions’ motion as information carrier, a way to cool unwanted modes is required to circumvent decoherence and information loss.
We investigate EIT cooling for multi-mode cooling of ion chains, both in harmonic and anharmonic trapping potentials. Segmented traps allow the application of anharmonic potentials and thus the possibility to arrange ions within a chain equidistantly. This property is of particular interest for quantum simulations, where equidistant spacing would more closely resemble the natural structure of - for example - solids.