Quantum state transfer from flying photons to stationary matter qubits is animportant element in the realization of quantum networks. Self-assembledsemiconductor quantum dots provide a promising solid-state platform hostingboth single photon and spin, with an inherent light-matter interface. Here, wedevelop a method to coherently and actively control the single-photon frequencybins in superposition using electro-optic modulators, and measure thespin-photon entanglement with a fidelity of $0.796\pm0.020$. Further, byGreenberger-Horne-Zeilinger-type state projection on the frequency, path andpolarization degrees of freedom of a single photon, we demonstrate quantumstate transfer from a single photon to a single electron spin confined in anInGaAs quantum dot, separated by 5 meters. The quantum state mapping from thephoton's polarization to the electron's spin is demonstrated along threedifferent axis on the Bloch sphere, with an average fidelity of $78.5\%$.
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