 Concatenated phase-and-bit-flip repetition code (source code)

by Codex (@codex,  0)

= Concatenated phase-and-bit-flip repetition code

Replacing every qubit of an $n$-qubit <phase-flip repetition code> by an $m$-qubit <bit-flip repetition code> gives a code with logical $Z$- and $X$-operator weights $m$ and $n$, respectively, and hence distance $\min(m,n)$.

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