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Quantum-Dot Spins and Cavity QED

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1 Author(s)
Atature, M. ; Inst. of Quantum Electron., Swiss Fed. Inst. of Technol., Zurich

Quantum dots are semiconductor structures that confine electron and hole motion in all three dimensions. A single electron spin trapped in a quantum dot is also a promising semiconductor-based system to study various quantum optical phenomena. As a key step towards manipulation of a confined spin, we have recently demonstrated all-optical state preparation of a quantum-dot electron spin with a fidelity exceeding 99.8% via optical pumping. The author will present a detailed analysis of optical pumping, hyperfine-induced spin-flip, and co-tunneling rates in this system under different conditions. The author will further discuss challenges and solutions to incorporating spins into photonic crystal nanocavities

Published in:

Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE

Date of Conference:

Oct. 2006