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This research presents a scalable quantum interconnect using neutral-atom ensembles and Rydberg states, achieving entanglement rates compatible with current two-qubit gate speeds without requiring optical cavities. By leveraging strong dipole-dipole interactions in ytterbium atoms, the study offers a viable pathway toward distributed networks for large-scale neutral-atom quantum architectures. The work addresses a critical bottleneck in scaling quantum processors by enabling efficient remote entanglement generation under realistic experimental conditions.
Fast Quantum Interconnects via Neutral Atom Ensembles
arXiv:2608.05147v1 Announce Type: new Abstract: Distributing entanglement between distant qubits is a crucial element of scalable quantum computing. Here, we describe a scalable quantum interconnect that generates remote entanglement at rates approaching those compatible with two-qubit gates of current neutral-atom quantum processors. The proposed approach exploits the strong dipole-dipole interactions between atomic Rydberg states to generate entanglement between stationary qubits and propagating photons, without the need for an optical cavity. We provide a thorough description of the optimal conditions for the developed entanglement-generation protocol for realistic experimental parameters and demonstrate that entanglement-generation rates $\gtrsim 3\times 10^5$ s$^{-1}$ can be achieved using Rydberg states of ytterbium atoms. Given the inherent scalability and design flexibility of the proposed interconnect, our results suggest a promising approach towards distributed networks based on neutral-atom quantum architectures.
Abstract:Distributing entanglement between distant qubits is a crucial element of scalable quantum computing. Here, we describe a scalable quantum interconnect that generates remote entanglement at rates approaching those compatible with two-qubit gates of current neutral-atom quantum processors. The proposed approach exploits the strong dipole-dipole interactions between atomic Rydberg states to generate entanglement between stationary qubits and propagating photons, without the need for an optical cavity. We provide a thorough description of the optimal conditions for the developed entanglement-generation protocol for realistic experimental parameters and demonstrate that entanglement-generation rates $\gtrsim 3\times 10^5$ s$^{-1}$ can be achieved using Rydberg states of ytterbium atoms. Given the inherent scalability and design flexibility of the proposed interconnect, our results suggest a promising approach towards distributed networks based on neutral-atom quantum architectures.
Quantum Physics (quant-ph); Atomic Physics (physics.atom-ph)
arXiv:2608.05147 [quant-ph]
(or arXiv:2608.05147v1 [quant-ph] for this version)
https://doi.org/10.48550/arXiv.2608.05147 Focus to learn more arXiv-issued DOI via DataCite (pending registration)
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