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Optical control of two quantum dots

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The spin of an electron, or hole, in a quantum dot provides an optically controlled quantum memory. In this talk I will present our recent optical studies of individual InAs/GaAs self-assembled quantum dot molecules – two InAs dots separated by a thin GaAs tunneling barrier. When the energies of the individual charged dots are brought into resonance by an external electric field, the optical spectrum forms spectral patterns that reveal a great deal about the physics of these artificial molecules and enables optically controlled entanglement

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