We present an all-optical scheme for a solid-state implementation of quantum information processing. The combined effect of static electric fields and ultrafast sequences of multi-color laser pulses on a semiconductor quantum dot array is investigated. We show how these ingredients can be used to perform single- as well as two-qubit gate operations, by exploiting the ground-state excitonic transitions as computational degrees of freedom. We demonstrate that by these means it is possible to implement basic quantum-computation operations on a time scale much shorter than the exciton dephasing time.
All-optical quantum dot implementation for quantum computing / D'Amico, I.; Biolatti, Eliana; Pazy, E.; Zanardi, P.; Rossi, Fausto. - In: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES. - ISSN 1386-9477. - STAMPA. - 13:2-4(2002), pp. 620-623. [10.1016/S1386-9477(02)00200-X]
All-optical quantum dot implementation for quantum computing
BIOLATTI, Eliana;ROSSI, FAUSTO
2002
Abstract
We present an all-optical scheme for a solid-state implementation of quantum information processing. The combined effect of static electric fields and ultrafast sequences of multi-color laser pulses on a semiconductor quantum dot array is investigated. We show how these ingredients can be used to perform single- as well as two-qubit gate operations, by exploiting the ground-state excitonic transitions as computational degrees of freedom. We demonstrate that by these means it is possible to implement basic quantum-computation operations on a time scale much shorter than the exciton dephasing time.Pubblicazioni consigliate
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https://hdl.handle.net/11583/1405248
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