Hannover 2010 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 55: Poster II
Q 55.46: Poster
Thursday, March 11, 2010, 16:00–19:00, Lichthof
Towards Cryogenic Surface Ion Traps — •Regina Lechner1, Michael Niedermayr1, Muir Kumph1, Michael Brownnutt1, and Rainer Blatt1,2 — 1Institut für Experimentalphysik, Uni. Innsbruck, Technikerstr. 25, 6020 Innsbruck, Austria — 2Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Otto-Hittmair-Platz 1, 6020 Innsbruck, Austria
Many future applications of quantum information processes such as quantum simulations and entanglement-enhanced precision measurements require a large number of qubits.
Arrays of miniaturised traps will form an ideal system for trapping large numbers of ionic qubits. Increased ion-heating rates in miniaturised traps due to charging of nearby surfaces can be mitigated by cooling the trap to cryogenic temperatures.
We present the characterisation of a gold-on-sapphire surface microtrap suitable for use at cryogenic temperatures. Furthermore, we discuss the experimental system including the cryostat and investigate the photoionisation loading of microtraps.