Optically Heralded Entanglement of Superconducting Systems in Quantum Networks
Author(s)
Krastanov, Stefan; Raniwala, Hamza; Holzgrafe, Jeffrey; Jacobs, Kurt; Lončar, Marko; Reagor, Matthew J; Englund, Dirk R; ... Show more Show less
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Networking superconducting quantum computers is a longstanding challenge in quantum science. The typical approach has been to cascade transducers: converting to optical frequencies at the transmitter and to microwave frequencies at the receiver. However, the small microwave-optical coupling and added noise have proven formidable obstacles. Instead, we propose optical networking via heralding end-to-end entanglement with one detected photon and teleportation. This new protocol can be implemented on standard transduction hardware while providing significant performance improvements over transduction. In contrast to cascaded direct transduction, our scheme absorbs the low optical-microwave coupling efficiency into the heralding step, thus breaking the rate-fidelity trade-off. Moreover, this technique unifies and simplifies entanglement generation between superconducting devices and other physical modalities in quantum networks.
Date issued
2021Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Research Laboratory of ElectronicsJournal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Krastanov, Stefan, Raniwala, Hamza, Holzgrafe, Jeffrey, Jacobs, Kurt, Lončar, Marko et al. 2021. "Optically Heralded Entanglement of Superconducting Systems in Quantum Networks." Physical Review Letters, 127 (4).
Version: Final published version