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Quantum Interconnects Link Two 120-Qubit Processors (IBM Research)

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Quantum Interconnects Link Two 120-Qubit Processors (IBM Research)

Researchers at IBM Research published “Meter-scale quantum interconnects between large quantum processors.”

Abstract Excerpt:
“Modular quantum architecture requires long-distance quantum interconnects to stitch together individual processor modules. Such interconnects, long-distance couplers or L-couplers, must support coherent quantum operation over meter-scale distances and scale to multiple connections between any two modules. Here we demonstrate four L-couplers operating between two 120-qubit IBM Nighthawk R1 superconducting qubit processors. “

Find the technical paper here. October 2026. IBM’s related blog post is here.

Sundaresan, Neereja M., et al. “Meter-scale quantum interconnects between large quantum processors.” arXiv preprint arXiv:2610.29986 (2026).



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