Quantum State Teleportation from a Single Ion to a Single Photon by Heralded Absorption

Using a high-brightness narrowband source of
⁴⁰
Ca
⁺
-ion-resonant entangled photon pairs at 854 nm, we teleport a qubit from the D
_5/2
Zeeman sub-levels of the ion onto the polarization qubit of a single photon by heralded absorption.