Berlin 2005 – scientific programme
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Q: Quantenoptik und Photonik
Q 3: Poster Quanteninformation, -kommunikation und Quantencomputer
Q 3.20: Poster
Friday, March 4, 2005, 11:00–12:30, Poster HU
Surface Quality of Atom Chips — •Sönke Groth1,2, Peter Krüger1, Stephan Wildermuth1, Diana Mahalu2, Israel Bar-Joseph2, and Jörg Schmiedmayer1 — 1Physikalisches Insitut, Heidelberg, Germany — 2Weizmann Institute of Science, Rehovot, Israel
Neutral Atoms are traped and cooled to BEC with Atom Chips. Advantages of Atom Chips are high current densities, submicron shaped wires with thickness from nm to µm scale for exactly defined potentials and serial production. Nanofabrication lithography enables to produce high quality surfaces. These are used as mirrors for laser cooling and are important for well defined current flow in the wires, as the trapped atoms are sensitive on small changes in the potential. Different materials were tested on their surface qualities and usability. Also further developments of Atom Chips are shown.