Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 37: Poster III

Q 37.22: Poster

Mittwoch, 13. März 2024, 17:00–19:00, Tent B

Building a tweezer array with programmable connectivity — •Johannes Schabbauer, Stephan Roschinski, Marvin Holten, and Julian Léonard — TU Wien, Atominstitut, Vienna Center for Quantum Science and Technology (VCQ), Austria

Creating multi-particle entangled states deterministically is one of the big challenges for quantum information processing. While this was achieved locally in several systems, for instance with arrays of optical tweezers using Rydberg interactions between atoms, we present a novel platform to engineer non-local interactions between single atoms in optical tweezers by strong coupling to an optical cavity. In our experiment we use a fiber cavity, which enables good optical access for placing high resolution microscopes above and below the cavity. These microscopes are used for creating the tweezer array, single-site resolved imaging, and addressing single atoms in the optical tweezers. Our experiment enables us to study multi-particle entangled states and many-body systems with programmable interactions. The dispersive shift of the cavity resonance can be used to perform non-destructive measurements and to implement protocols for dissipative state preparation.

Keywords: Entanglement; Cavity; Tweezers; Cold Atoms