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Coupling quantum dot spins to a photonic crystal nanocavity

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8 Author(s)
Imamoglu, A. ; Institute of Quantum Electronics, ETH Zurich, CH-8093 Zurich, Switzerland ; Falt, S. ; Dreiser, J. ; Fernandez, G.
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We present a method that allows for deterministic coupling of charge-tunable quantum dots to high-Q photonic crystal nanocavity modes. The realization of cavity-mediated coherent coupling of two distant spins is hindered by large fluctuations in quantum dot optical (trion) transition energy and interdot separation. We show that flexible cavity design and gate-voltage-tunable trion transitions in quantum dot molecules can be used to overcome these limitations and to achieve conditional quantum dynamics of two confined spins.

Published in:

Journal of Applied Physics  (Volume:101 ,  Issue: 8 )