08 Fakultät Mathematik und Physik
Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/9
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Item Open Access Long-lived circular Rydberg qubits of alkaline-earth atoms in optical tweezers(2024) Hölzl, Christian; Götzelmann, Aaron; Pultinevicius, Einius; Wirth, Moritz; Meinert, FlorianItem Open Access Realization of alkaline-earth circular Rydberg qubits in optical tweezer arrays(2024) Hölzl, Christian; Pfau, Tilman (Prof. Dr.)Individually controlled neutral atoms in arrays of optical tweezers have enabled rapid advances in the development of quantum computers and simulators over the last years. The finite lifetime of highly excited Rydberg atoms, which provide the interactions between the individual atoms, fundamentally limits the coherence times and gate fidelities of these machines. Circular Rydberg states are a promising candidate to overcome those limitations since their maximum angular momentum allows them to be protected from decay. In this work, I will report on the design and setup of a room-temperature quantum simulator based on circular Rydberg states of strontium atoms trapped in an optical tweezer array. With this setup, the tweezer-trapped circular Rydberg state qubits are realized in an alkaline-earth atom for the first time. A sophisticated electrode structure stabilizes the qubit states against black-body-radiation and enables the creation of the longest lived Rydberg states ever observed in a room-temperature setup.