Summary

Prototype quantum computers already exist , but if we're to truly realize their full potential, they need to be significantly scaled up and stabilized – and a team of researchers from IBM just announced an important step toward this goal. The upgrade concerns the long-distance couplers (L-couplers) that connect qubits together. Qubits sit at the heart of quantum computers, and unlike the conventional bits that underpin classical computing, they're not restricted to a binary state of 1 or 0.

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