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arXiv · 0907.3187

Fast, High Fidelity Quantum Dot Spin Initialization without a Strong Magnetic Field by Two-Photon Processes

Arka Majumdar·Ziliang Lin·Andrei Faraon·Jelena Vuckovic
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Abstract

We describe a proposal for fast electron spin initialization in a negatively charged quantum dot coupled to a microcavity without the need for a strong magnetic field. We employ two-photon excitation to access trion states that are spin forbidden by one-photon excitation. Our simulation shows a maximum initialization speed of 1.3 GHz and maximum fidelity of 99.7% with realistic system parameters.

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Arka Majumdar, Ziliang Lin, Andrei Faraon, Jelena Vuckovic. 2009-07-20. Fast, High Fidelity Quantum Dot Spin Initialization without a Strong Magnetic Field by Two-Photon Processes. https://doi.org/10.1103/physreva.82.022301

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