Deterministic Writing and Control of the Dark Exciton Spin Using Single Short Optical Pulses

We demonstrate that the quantum dot-confined dark exciton forms a long-lived integer spin solid-state qubit that can be deterministically on-demand initiated in a pure state by one optical pulse. Moreover, we show that this qubit can be fully controlled using short optical pulses, which are several...

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Bibliographic Details
Main Authors: I. Schwartz, E. R. Schmidgall, L. Gantz, D. Cogan, E. Bordo, Y. Don, M. Zielinski, D. Gershoni
Format: Article
Language:English
Published: American Physical Society 2015-01-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.5.011009