Seminars & Lectures
* TITLE | Optically driven qubits in artificial molecules | ||||||
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* HOST(Applicant) | |||||||
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* DATE / TIME | 2001-09-07, 16:00 - 17:30 | ||||||
* PLACE | KIAS Room 1423 | ||||||
* ABSTRACT | |||||||
We present models of quantum gates based on coupled quantum dots in which a qubit is regarded as the superposition of ground states in each dot. Coherent control on the qubit is performed by a monochromatic light pulse illuminated on the quantum dots. Considering particular types of artificial molecules, we show that the qubit is easily manipulated with the polarization and frequency of a light pulse and, especially, the controlled-NOT operation can be possible exploiting the electron-electron interaction. |