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Negative Polarization through Photon to Electron Spin Polarization Transfer in GaAs Quantum Wells

H. Kosaka·Y. Rikitake·H. Imamura·Y. Mitsumori·K. Edamatsu
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Abstract

We demonstrate negative polarization created by light-hole exciton excitation in g-factor engineered GaAs quantum wells measured by time-resolved Kerr rotation and polarization-resolved photoluminescence. This negative polarization is a result of polarization transfer from a photon to an electron spin mediated by a light hole. This demonstration is an important step towards achieving quantum media conversion from a photonic qubit to an electron spin qubit required for building a quantum repeater.

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H. Kosaka, Y. Rikitake, H. Imamura, Y. Mitsumori, K. Edamatsu. 2006-09-20. Negative Polarization through Photon to Electron Spin Polarization Transfer in GaAs Quantum Wells. https://arxiv.org/abs/quant-ph/0609152

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