Meter-scale quantum interconnects between large quantum processors
- Autores
- Neereja Sundaresan, Nicholas Cotaj, Yadav P. Kandel y otros 39
- Publicado
- arXiv (Cornell University) · 21 oct 2026
- DOI
- 10.48550/arxiv.2610.29986
- Acceso
- abierto
Resumen de los autores
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. Each L-coupler joins two Nighthawk lattice qubits through two frequency-tunable L-qubits, two RF-SQUID based "i2m" couplers, and 80 cm of superconducting aluminum coax. Each…
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