Title :
The dark exciton in a quantum dot- a novel bright qubit with very long coherence time
Author :
Poem, E. ; Kodriano, Y. ; Lindner, N.H. ; Gerardot, B.D. ; Petroff, P.M. ; Gershoni, D.
Author_Institution :
Dept. of Phys., Technion - Israel Inst. of Technol., Haifa, Israel
Abstract :
We demonstrate for the first time that the quantum dot confined dark exciton is a natural, coherent and long-lived qubit. We optically “write” its spin state and successfully “read” its subsequent coherent evolution.
Keywords :
excitons; quantum dots; dark exciton; quantum dot; Charge carrier processes; Electron optics; Elementary particle exchange interactions; Excitons; Laser tuning; Metastasis; Physics; Polarization; Quantum dots; Tunneling;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
