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Erlangen 2018 – scientific programme

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A: Fachverband Atomphysik

A 1: Cold atoms I - Rydbergs (joint session A/Q)

A 1.3: Talk

Monday, March 5, 2018, 11:00–11:15, K 0.011

Coupling Rydberg atoms and superconducting resonators — •Helge Hattermann, Li Yuan Ley, Conny Glaser, Daniel Bothner, Benedikt Ferdinand, Lörinc Sárkány, Reinhold Kleiner, Dieter Koelle, and József Fortágh — CQ Center for Quantum Science, Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen

We report on the the coupling between ultracold 87Rb Rydberg atoms and a driven coplanar waveguide resonator on a superconducting atom chip. The superconducting cavity at 20.5 GHz is near-resonant to the transition frequency between Rydberg states. Driven transitions are detected by state selective field ionization of the Rydberg states.

Close to the chip, Rydberg states are strongly affected by the electric field of adsorbates on the chip, leading to spatially inhomogeneous energy shifts.

Coupling Rydberg atoms to coplanar superconducting resonators has been proposed for efficient state transfer between solid state systems and ultracold atoms, the generation of an atomic quantum memory and the implementation of novel quantum gates [1].

[1] L. Sárkány et al., Phys. Rev. A 92, 030303 (2015).

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