Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 42: Poster: Quantum Optics and Photonics III
Q 42.29: Poster
Mittwoch, 2. März 2016, 16:30–19:00, Empore Lichthof
Scaling down cryogenic surface ion traps for quantum information processing — •Kirill Lakhmanskiy1, Philip Holz1, Stefan Partel2, Stephan Kasemann2, Volha Matylitskaya2, Johannes Edlinger2, Yves Colombe1, and Rainer Blatt1,3 — 1Institute for Experimental Physics, University of Innsbruck, Austria — 2Fachhochschule Vorarlberg, Dornbirn, Austria — 3Institute for Quantum Optics and Quantum Information, Innsbruck, Austria
Ion traps are a promising platform for quantum information processing. We report on our recent experimental results with microfabricated surface ion traps in cryogenic environment using two different trapping architectures. In the first project we use linear surface ion traps based on intrinsic silicon. These traps were fabricated using a deep reactive-ion etching process followed by silicon oxidation and metal deposition. We were able to show very low motional heating rates at an ion-electrode separation of 230 µm [1]. Our current goal is to scale down the traps while keeping the heating rate sufficiently low to perform high-fidelity quantum operations. The aim of the second project is to realize a 2D array of individual point traps for quantum simulation. We use a microfabricated 4×4 ion trap array with an ion-ion separation of 100 µm. This distance may be reduced while operating the trap using switchable RF electronics [2], to a point where coherent operations mediated by the Coulomb interaction become possible.
[1] M. Niedermayr et al., New J. Phys. 16, 113068 (2014)
[2] M. Kumph, P. Holz, K. Langer, M. Niedermayr, M. Brownnutt, and R. Blatt, arXiv:1402.0791