= Teleportation fidelity
{title2=$F_\psi=\langle\psi|\rho_{\rm out}|\psi\rangle$}
For a pure input target $|\psi\rangle$ and normalized output <density operator> $\rho_{\rm out}$, the displayed squared <quantum fidelity> measures how well a teleportation channel reproduces that target. A mean value additionally specifies the input ensemble and whether it is conditioned on success. Detection efficiency, conditional fidelity, heralding and overall success <probability> are distinct experimental quantities.
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