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Quantum computing

From the basics of qubits and quantum operations to error correction, communication and cryptography. See how each technology works and how the ideas connect.

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Concepts from newly published articles, explained in plain words.

Silicon spin qubitA qubit that uses the spin of an electron inside a semiconductor chip as the basic unit of quantum information.
Toffoli gateA key operation in quantum computing that acts on three qubits together.

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These concept articles were written by AI and checked again for accuracy before publishing. The English edition is translated from the Korean articles. They leave out things that change quickly, such as prices and rankings. Tell us if something is wrong. Report an errorLast updated 2026-11-12