Towards telecommunication-band quantum networking for atom arrays
Oral
Abstract
Neutral atom arrays are a powerful platform for quantum computation and simulation. Extending their connectivity via remote entanglement is a key requirement for quantum networking applications such as distributed computation, non-local sensing, and quantum key distribution. Furthermore, operating in the telecommunication C-band is essential for realizing low-loss, long-distance entanglement between spatially separated atomic nodes.
In this talk, I will present progress toward quantum networking with individually trapped 87Rb atoms using an intrinsic atomic interface at 1530 nm based on the 5P3/2 ↔ 4D5/2 transition. This is realized in a novel cavity QED architecture based on high-finesse Fabry-Perot microcavities. The cavities are fabricated using scalable silicon nanolithography techniques and are optimized for photon collection efficiency, with predicted single-atom cooperativities exceeding 200. We further demonstrate coherent control of atomic stretched states, establishing essential ingredients for fast, high-fidelity spin-photon entanglement.
These results outline a path toward metropolitan-scale entanglement distribution. More broadly, they demonstrate the potential for integrating neutral atom arrays with silicon nanophotonic platforms for multiplexing and on-chip entanglement routing.
In this talk, I will present progress toward quantum networking with individually trapped 87Rb atoms using an intrinsic atomic interface at 1530 nm based on the 5P3/2 ↔ 4D5/2 transition. This is realized in a novel cavity QED architecture based on high-finesse Fabry-Perot microcavities. The cavities are fabricated using scalable silicon nanolithography techniques and are optimized for photon collection efficiency, with predicted single-atom cooperativities exceeding 200. We further demonstrate coherent control of atomic stretched states, establishing essential ingredients for fast, high-fidelity spin-photon entanglement.
These results outline a path toward metropolitan-scale entanglement distribution. More broadly, they demonstrate the potential for integrating neutral atom arrays with silicon nanophotonic platforms for multiplexing and on-chip entanglement routing.
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Presenters
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Andrei Ruskuc
- Harvard University