In this Rapid Communication we propose to use GaN-based quantum dots as building blocks for solid-state quantum-computing devices. The existence of a strong built-in electric field induced by the spontaneous polarization and by the piezoelectricity is exploited to generate entangled few-exciton states in coupled quantum dots without resorting to external fields. More specifically, we shall show how the built-in field induces intrinsic exciton-exciton coupling, which can be used to realize basic quantum information processing on a sub-picosecond time scale.
Intrinsic exciton-exciton coupling in GaN-based quantum dots: Application to solid-state quantum computing / DE RINALDIS, S; D'Amico, I; Biolatti, E; Rinaldi, R; Cingolani, R; Rossi, Fausto. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 65:8(2002), pp. 081309-1-081309-4. [10.1103/PhysRevB.65.081309]
Intrinsic exciton-exciton coupling in GaN-based quantum dots: Application to solid-state quantum computing
ROSSI, FAUSTO
2002
Abstract
In this Rapid Communication we propose to use GaN-based quantum dots as building blocks for solid-state quantum-computing devices. The existence of a strong built-in electric field induced by the spontaneous polarization and by the piezoelectricity is exploited to generate entangled few-exciton states in coupled quantum dots without resorting to external fields. More specifically, we shall show how the built-in field induces intrinsic exciton-exciton coupling, which can be used to realize basic quantum information processing on a sub-picosecond time scale.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/1405236
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