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Modular quantum computing takes shape with l-couplers

Published

27 October 2026

Topic

opportunities

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Quantum Computing

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United States

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Read at ibm.com →

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Fusion42 · 27 October 2026 · Fusion42 review

IBM researchers have demonstrated reliable quantum state transfer with 99% fidelity using four meter-scale l-couplers to connect two superconducting quantum processors. This scalable inter-chip connection design supports modular quantum computing efforts aimed at building larger, fault-tolerant quantum systems.

This Wire brief sits within Fusion42's coverage of Quantum Computing.

◆ ◆ The Wire takeaway

You now have a tested method to scale quantum processors beyond a single chip using l-couplers. Focus on integrating modular quantum links to stay ahead as fault-tolerant systems become viable.

◆ Coverage

1 source · 27 Oct 2026

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Quantum Computingquantum-computingmodular-designsuperconducting-qubitsinterconnectsibm