Hannover 2020 – scientific programme

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A: Fachverband Atomphysik

A 25: Ultra-cold plasmas and Rydberg systems II (joint session A/Q)

A 25.2: Talk

Thursday, March 12, 2020, 14:30–14:45, a320

Rydberg Dressed Quantum Many-Body Systems — •Nikolaus Lorenz¹, Lorenzo Festa¹, Lea Steinert¹, Philip Osterholz¹, Joop Adema¹, Robin Eberhard¹, and Christian Gross^1,2 — ¹Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching — ²Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen

Neutral atoms in microtrap arrays brought to interaction by Rydberg coupling offer a novel platform to study quantum magnetism. We have constructed a new experiment with potassium atoms, which aims to induce the magnetic interactions via near-resonant Rydberg coupling, so called Rydberg dressing. Here we report on coherent Rydberg coupling in a two dimensional array of single atoms. We observe fast coherent Rabi oscillations of single atoms as well as of small Rydberg superatoms. Finally we discuss first experiments towards Rydberg dressing induced interactions among atomic ground states.