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Year 2·Month 30·Week 1

Day 813: Rotated Surface Code Geometry

Day 813 of 2,016~19 min read

Learning Objectives

•**Explain** the geometric relationship between rotated and unrotated surface codes
•**Derive** the [[d², 1, d]] code parameters for the rotated surface code
•**Construct** the stabilizer generators for rotated codes of arbitrary distance
•**Calculate** the qubit overhead advantage of rotation
•**Identify** data qubits, ancilla qubits, and their roles in the rotated layout
•**Implement** a rotated surface code lattice generator in Python

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