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A: Fachverband Atomphysik
A 8: Ultra-cold atoms, ions and BEC (joint session A/Q)
A 8.3: Talk
Monday, March 11, 2019, 16:45–17:00, S HS 1 Physik
Rydberg spectroscopy in an atom-ion hybrid trap — •Shinsuke Haze1, Joschka Wolf1, Markus Deiß1, Limei Wang1, Georg Raithel2, Christian Fey3, Frederic Hummel3, Florian Meinert4, Peter Schmelcher3, and Johannes Hecker Denschlag1 — 1Institut für Quantenmaterie, Universität Ulm, 89069 Ulm, Germany — 2Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA — 3Zentrum für Optische Quantentechnologien, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany — 4Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
Hybrid atom-ion trap has been a key technology for intriguing applications such as cold chemistry, molecular physics and so on. The good controllability of ion's and atomic states provides an opportunity for studying atom-ion interaction in an unprecedented regime. Here, we demonstrate Rydberg spectroscopy of rubidium atoms within an atom-ion hybrid trap, where an optical dipole trap and a Paul trap are combined for simultaneous trapping of neutral and charged particles. This versatility enables for capturing an ionized product following an optical excitation to Rydberg states. The trapped ions elastically collide with the rubidium atoms leading to an atom loss, which gives rise to a high sensitivity of observing the underlying Rydberg excitation. In this presentation, we show results for spectroscopy of Rydberg states, where we measured avoided level crossings. We will discuss our data by comparing with the calculated Stark map of Rydberg states.