logical qubit
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Introduction to Quantum Error Correction: The Bit-Flip Code
Learn how quantum error correction works by implementing the 3-qubit bit-flip code in Qiskit - encode a logical qubit, introduce an error, detect it with syndrome measurement, and correct it.
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- advanced
- 18 min read
The Surface Code: Quantum Error Correction at Scale
How the surface code works: the 2D lattice geometry, X and Z stabilizer measurements, logical operators, and why it's the leading candidate for fault-tolerant quantum computing.