Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 40: Poster: Quantum Optics and Photonics III
Q 40.7: Poster
Dienstag, 6. März 2018, 16:15–18:15, Zelt West
Scalable quantum computation - Keeping a qubit alive — •Lukas Gerster1, Martin van Mourik1, Matthias Brandl1, Lukas Postler1, Thomas Monz1, Philipp Schindler1, and Rainer Blatt1,2 — 1Institut für Experimentalphysik, Universität innsbruck, Austria — 2Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften , Austria
Trapped ions are a promising platform to host a future quantum computer.
In our setup we use a planar segmented trapping architecture in a cryostat to demonstrate scalable quantum manipulation. The setup has been designed to reduce magnetic field noise and mechanical vibrations which both can induce errors. [1] Two species, 40Ca+ and 88Sr+, are co-trapped, allowing for recooling of ion crystals during sequences. We have modified the setup to host a high optical access trap [2], featuring in vaccum-optics with high collection efficiency for high fidelity state readout.
We further present ion crystal rotation of both single and multi species ion crystals with only few phonons accumulated per rotation, similar to [3]. These operations expand the available toolbox, enabling quantum error correction protocols in the future.
[1] M. Brandl et al, Cryogenic setup for trapped ion quantum computing, 10.1063/1.4966970
[2] P. Maunz, High Optical Access Trap 2.0, 10.2172/1237003
[3] H. Kaufmann et al, Fast ion swapping for quantum-information processing, 10.1103/PhysRevA.95.052319