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Coherent optical control of the spin of a single hole in an InAs/GaAs quantum dot.
Godden, T M; Quilter, J H; Ramsay, A J; Wu, Yanwen; Brereton, P; Boyle, S J; Luxmoore, I J; Puebla-Nunez, J; Fox, A M; Skolnick, M S.
Afiliación
  • Godden TM; Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH, United Kingdom.
Phys Rev Lett ; 108(1): 017402, 2012 Jan 06.
Article en En | MEDLINE | ID: mdl-22304289
ABSTRACT
We demonstrate coherent optical control of a single hole spin confined to an InAs/GaAs quantum dot. A superposition of hole-spin states is created by fast (10-100 ps) dissociation of a spin-polarized electron-hole pair. Full control of the hole spin is achieved by combining coherent rotations about two axes Larmor precession of the hole spin about an external Voigt geometry magnetic field, and rotation about the optical axis due to the geometric phase shift induced by a picosecond laser pulse resonant with the hole-trion transition.
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Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2012 Tipo del documento: Article País de afiliación: Reino Unido
Buscar en Google
Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2012 Tipo del documento: Article País de afiliación: Reino Unido