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We present photon-spin quantum-state-transfer (QST) approach. GaAs/AlGaAs-QW with g~0 showed nonlinear B-field dependence of spin precession, suggesting photon-to-nuclei polarization transfer. 2DEG with quantum-point-contact on InGaAs/InP showed telecomwavelength-sensitive quantum transport. Efficient/high-fidelity QST conditions were also found.
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 demonstrate photon-spin polarization transfer. g-factor plays a key role in this transfer process. We obtained g~0 in GaAs/AlGaAs system, which showed anomalous phenomena suggesting population transfer from photons to nuclear spins through electron spins.
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