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

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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.
4 pages, 3 figures. Submitted to Phys. Rev. B

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/118393

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0609152
 http://arxiv.org/abs/quant-ph/0609152

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arXiv