Developing specialized micro ion traps for scalable QIPC

/fileadmin/website_uni_ulm/nawi.inst.220/bilder/bildmikrofalle2.jpgDeveloping specialized micro ion traps for scalable QIPC
Miniaturized multi-segmented ion traps are a promising architecture for quantum information processing in a scalable way. This project covers the development and characterization of scalable microchip sized ion traps and their ready-to-use application in quantum information science. Quantum algorithm experiments with microtraps requires high-quality engineered trap devices with long life cycle.

The actual microchip sized multi-segmented linear Paul trap is operated at a RF frequency of 25MHz with radial and axial frequencies of several MHz. Two adjacent trap regions, a storage zone for loading and a processing zone for the realization of quantum algorithms, are formed by 31 segment pairs in total. Complex shuttling algorithms can be performed by precise control of the 62 individual DC segment electrodes. This device is operating since March 2007 continously. Next experimental steps are the complete trap characterization including static heating rates in different zones and dynamic heating rates during complex optimized shuttling algorithms. Then quantum information experiments with Raman schemes are targeted. Further trap development is in preparation. See for 3D devices: New Journal of Physics 10, 045007(2008), for planar devices: Amado Bautista-Salvador, "Microfabrication of a Planar Paul Trap" 2008, PDF (28 MB)

The project is funded by the Landestiftung Baden-Württemberg within the A8 network, DFG within the SFB TR21 project C5, and the european comission within STREP MICROTRAP. A (necessarily uncomplete) list of groups designing and fabricating modern ion traps is here: I. Chuang, D. Wineland, C. Monroe.