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Erlangen 2022 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 29: Ultra-cold atoms, ions and BEC (joint session A/Q)

A 29.21: Poster

Donnerstag, 17. März 2022, 16:30–18:30, P

Tunable Beyond-Ising Interactions in Tweezer Arrays by Rydberg DressingLea Steinert, •Philip Osterholz, Arno Trautmann, and Christian Groß — Physikalisches Institut, Eberhard Karls Universität Tübingen, 72076 Tübingen, Germany

We report on a new experimental platform leveraging the long coherence times of a spin-1/2 encoded in the potassium-39 ground-state manifold and the tunability and versatility of interactions between atoms excited to Rydberg-states. We utilize an SLM to prepare an arrangement of optical tweezers, each occupied by a single atom. By off-resonantly coupling to the Rydberg manifold via a single photon transition, we are able to map tuneable angular- and distance-dependent XYZ-type interactions onto the spin-1/2 system. This approach paves the way not only to novel types of quantum magnets but together with the fast cycling time of ~1s it holds the promise to enable the measurement of new entanglement witnessing observables.

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