Quantum information science

Steane code

The Steane code is a tool in quantum error correction introduced by Andrew Steane in 1996. It is a CSS code (Calderbank-Shor-Steane), using the classical binary [7,4,3] Hamming code to correct for qubit flip errors (X errors) and the dual of the Hamming code, the [7,3,4] code, to correct for phase flip errors (Z errors). The Steane code encodes one logical qubit in 7 physical qubits and is able to correct arbitrary single qubit errors. Its check matrix in standard form is where H is the parity-check matrix of the Hamming code and is given by The Steane code is the first in the family of quantum Hamming codes, codes with parameters for integers . It is also a quantum color code. (Wikipedia).

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Generator (mathematics) | Parity-check matrix | Qubit | CSS code | Stabilizer code | Quantum error correction | Hamming code | Canonical form