Dresden 2011 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 26: Poster III

A 26.79: Poster

Donnerstag, 17. März 2011, 16:00–18:30, P2

Rydberg Atoms on an Atom Chip — •Atreju Tauschinsky, Vanessa Leung, H.B. van Linden van den Heuvell, and R.J.C. Spreeuw — Universiteit van Amsterdam, Amsterdam, The Netherlands

We present our new system for investigating Rydberg interactions on an atom chip. It is composed of a structured permanent magnetic film on an atom chip1, allowing the creation of square and triangular arrays of hundreds of microtraps for ultracold atoms. The structure of the magnetic film has been designed for optimal trap geometries using a fast numerical algorithm2. The high trap frequencies (>10kHz) and relatively small lattice constants of approximately 5µm allow the investigation of both inter- and intra-trap interactions, as well as further investigations of surface effects using Rydberg excited atoms3. The implementation of a high-NA imaging system should allow single-atom detection using absorption imaging. These characteristics make our system an excellent starting point for studies of atom-surface interactions, many-body physics and quantum information science involving interacting Rydberg atoms on chips.

1S. Whitlock et al. Two-dimensional array of microtraps with atomic shift register on a chip. New J. Phys. 11, 023021 (2009)

2Roman Schmied et al. Optimized magnetic lattices for ultracold atomic ensembles. New J. Phys. 12, 103029 (2010)

3Atreju Tauschinsky et al. Spatially resolved excitation of Rydberg atoms and surface effects on an atom chip. Phys. Rev. A 81, 063411 (2010)

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