We study the quantum state transfer (QST) from a photon polarization to an electron spin. We reveal the condition for high-yield and high-fidelity QST by solving the time-dependent Schrodinger equation.
We theoretically analyze the yield and fidelity of the quantum state transfer (QST) from a photon polarization qubit to an electron spin qubit using a spin‐coherent photo‐detector consisting of a semiconductor quantum dot. We use the modified one‐dimensional light‐atom interaction model which includes parameters such as photon‐dot interaction, the tunneling rate of the created hole, the bandwidth of the input photon, and the electron‐hole exchange interaction. The electron‐hole exchange interaction disturbs the electron spin state and thus decreases the fidelity of the QST. We find the optimal conditions in which both a high‐yield and high‐fidelity QST is realized.