In this thesis, we investigate the quantum properties of charge and spin states in semiconductor artificial atoms and molecules to assess their suitability for use as hardware for emergent quantum technologies. Specifically, a range of ultrafast optical techniques are developed and used to probe carrier tunnelling and thermalisation dynamics, to investigate molecular like electronic states and demonstrate the coherent preparation, manipulation and read-out of exciton and hole spin states with high fidelity, above 96%.
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In this thesis, we investigate the quantum properties of charge and spin states in semiconductor artificial atoms and molecules to assess their suitability for use as hardware for emergent quantum technologies. Specifically, a range of ultrafast optical techniques are developed and used to probe carrier tunnelling and thermalisation dynamics, to investigate molecular like electronic states and demonstrate the coherent preparation, manipulation and read-out of exciton and hole spin states with hi...
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