Observation of low-lying excitations of electrons in coupled quantum dots (Articolo in rivista)

Type
Label
  • Observation of low-lying excitations of electrons in coupled quantum dots (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Garcia, CP; Kalliakos, S; Pellegrini, V; Pinczuk, A; Dennis, BS; Pfeiffer, LN; West, KW (2006)
    Observation of low-lying excitations of electrons in coupled quantum dots
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Garcia, CP; Kalliakos, S; Pellegrini, V; Pinczuk, A; Dennis, BS; Pfeiffer, LN; West, KW (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 88 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • NEST, CNR, INFM, I-56126 Pisa, Italy; Scuola Normale Super Pisa, I-56126 Pisa, Italy; Bell Labs & Lucent Technol, Murray Hill, NJ 07974 USA; Columbia Univ, Dept Phys, New York, NY 10027 USA; Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA (literal)
Titolo
  • Observation of low-lying excitations of electrons in coupled quantum dots (literal)
Abstract
  • Tunneling excitations of electrons in dry-etched modulation-doped AlGaAs/GaAs coupled quantum dots (QDs) are probed by resonant inelastic light scattering. A sequence of intra- and intershell excitations are found at energies determined by the interplay between the QD confinement energy h omega(0) and the tunneling gap Delta(SAS), the splitting between the symmetric and antisymmetric delocalized single particle molecular states. The narrow linewidths displayed by electronic excitations in these nanostructures indicate promising venues for the spectroscopic investigation of entanglement of electron states in these artificial molecules. (c) 2006 American Institute of Physics. (literal)
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