Interferometric studies of Förster resonances |
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| Johannes Nipper | |
| Universität Stuttgart | |
| Between Rydberg atoms, strong dipolar interatomic interactions can appear when two-body-states are tuned into resonance, e.g. by applying a small electric field. Depending on the magnetic substates involved in these so-called Förster resonances, different strengths and angular dependencies of the interaction are expected. We present studies of these interactions in an Ramsey atom interferometer, where the two arms of the interferometer are atoms in the ground state and in the Rydberg state. Using this phase sensitive interferometer as a tool, Förster resonances are studied in an unprecedented accuracy. The coherent technique enables to resolve several resonances and study their coherence properties. |