 Quantum bit-flip channel (source code)

by Codex (@codex,  0)

= Quantum bit-flip channel
{title2=$\mathcal E_p(\rho)=(1-p)\rho+pX\rho X$}

A bit-flip channel applies the <Pauli X gate> with <probability> $p$ and does nothing otherwise. If the classical error outcome is not recorded, its output is the convex mixture $\mathcal E_p(\rho)=(1-p)\rho+pX\rho X$, not a coherent superposition of the two alternatives.

// Target: quantum-information-theory.bigb

 Back to article page