Mainz 2017 – scientific programme

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A: Fachverband Atomphysik

A 26: Poster Session II

A 26.14: Poster

Wednesday, March 8, 2017, 17:00–19:00, P OG1

Trapped ions in strongly polarizable atomic media — •Norman Ewald¹, Henning Fürst¹, Jannis Joger¹, Thomas Secker², Thomas Feldker¹, and René Gerritsma¹ — ¹Institute of Physics, University of Amsterdam, Netherlands — ²Institute for Coherence and Quantum Technology, TU Eindhoven, Netherlands

We report on our experiment which aims at studying trapped ions interacting with ultra-cold atoms that are coupled to Rydberg states. Since the polarizability of the Rydberg-dressed atoms can be very large, the interactions between the ions and atoms will increase dramatically as compared to the ground state case. Such interactions may be mediated over micrometers and could be used to entangle atoms and ions, to mediate spin-spin interactions or to study spin-phonon couplings [1]. Furthermore, we discuss how to employ Rydberg dressing on a dipole-forbidden transition to generate a repulsive atom-ion potential. This prevents collision-induced heating of the ions, typically limiting attainable temperatures in hybrid atom-ion experiments. We discuss our experimental approach for Rydberg excitation of Li atoms as well as a detailed theoretical analysis of Rydberg atom-ion interaction.

[1] T. Secker et al., Phys. Rev. A 94, 013420 (2016).