Osnabrück 2002 – scientific programme
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Q: Quantenoptik
Q 301: Poster: Fallen, Kühlung, Teilchenoptik
Q 301.23: Poster
Wednesday, March 6, 2002, 11:00–13:00, Schloss
A multi mode interferometer on an atom chip — •Peter Krüger1, Erika Andersson2, Mauritz Andersson3, Tommaso Calarco4, Ron Folman1, Hartmut Gimpel1, Björn Hessmo5, and Jörg Schmiedmayer1 — 1Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg — 2Department of Physics, Royal Institute of Technology, S-10044 Stockholm — 3Department of Quantum Chemistry, Uppsala University, S-75120 Uppsala — 4Institut für theoretische Physik, Universität Innsbruck, A-6020 Innsbruck and ECT*, I-38050 Villazzano — 5Department of Microelectronics and Information Technology, Royal Institute of Technology, S-16440 Kista
Experiments dealing with neutral atoms near material surfaces (atom chips) are currently in progress in many laboratories. For the success of the concept of an atom chip it will be of great importance to be able to manipulate the atomic waves coherently.
Here, we present a scheme to prove coherent transport by an interferometric technique. As opposed to other proposals our interferometer does not rely on a single mode matter wave source (BEC). In idealized model calculations [1] it has been demonstrated that high contrast fringes will be observable for a thermal, i.e. multi mode source. In addition to these calculations, we consider imperfections and how they alter the interference pattern in a realistic experiment on an atom chip. The current status of the experiment will be discussed.
[1] E. Andersson et al., quant-ph/0107124.