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Shradda Anand, Kevin Singh and Hannes Bernien with the dual-species apparatus

Our work on dual-species Rydberg arrays has been published in Nature Physics! Congratulations to the whole team! In the work we show the first Rydberg interactions between two atomic in an atomic array. There are multiple interaction regimes that can accessed and we demonstrate a strongly enhanced dual-species interaction via a Förster resonance. Further, we use the interaction to demonstrate a two-qubit gate and do quantum non-demolition measurements useing one atomic species as an auxiliary. 

BernienLab in Innsbruck, credit: David Jordan

The BernienLab spent one week in Innsbruck to get to know their future environment. It was a fantastic week full of scientific exchange with the quantum community in Innsbruck, as well as social exchange. A picturesque hiking trip and a taste of the local cuisine rounded off a great trip. We will certainly come again!

The BernienLab posts their latest work on the dual-species platform on the arXiv. In this work we introduce Rydberg interactions between the cesium and rubidium atoms in our arrays and explore new interaction and dynamic regimes that are unique to this approach.

In a collaborative effort spanning three countries the Bernien group, Tittel group and Borregaard group propose a new hybrid quantum repeater architecture that could drastically improve the speed in a quantum network. The architecture pairs the multimode capabilities of a rare-earth ion doped quantum memory with individual atoms coupled to nanophotonic crystal cavities for the rapid generation of entangled photon pairs.

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