Hannover 2020 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 22: Poster Session - Atomic Physics III

A 22.13: Poster

Mittwoch, 11. März 2020, 16:00–18:00, Empore Lichthof

Towards Arrays of Cryogenic Traps for Improved Quantum Simulation — •Kai-Niklas Schymik, Florence Nogrette, Daniel Barredo, Thierry Lahaye, and Antoine Browaeys — Laboratoire Charles Fabry, Institut d'Optique Graduate School, Palaiseau, France

Large arrays of individually controlled atoms in optical tweezers are a promising platform for quantum engineering applications. In our group, we have realized several quantum simulations of spin models in 2D arrays of Rydberg atoms with up to 50 spins.

Here we report on the development of a novel cryogenic platform for performing quantum simulations with several 100s of spins with increased coherence times. Combining the techniques of the current setup and a closed-cycle, optical-access cryostat at 4 K, we will tackle two main limitations of scalability: the vacuum lifetime of the ground-state atom in the tweezers due to collisions with residual gas and the decoherence arising from black-body radiation induced transitions between neighboring Rydberg states.