An electrostatically defined serial triple quantum dot charged with few electrons

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dc.creatorSchröer, D.
dc.creatorGreentree, A. D.
dc.creatorGaudreau, L.
dc.creatorEberl, K.
dc.creatorHollenberg, L. C. L.
dc.creatorKotthaus, J. P.
dc.creatorLudwig, S.
dc.date2007-03-16
dc.date.accessioned2026-07-07T08:26:57Z
dc.date.available2026-07-07T08:26:57Z
dc.descriptionA serial triple quantum dot (TQD) electrostatically defined in a GaAs/AlGaAs heterostructure is characterized by using a nearby quantum point contact as charge detector. Ground state stability diagrams demonstrate control in the regime of few electrons charging the TQD. An electrostatic model is developed to determine the ground state charge configurations of the TQD. Numerical calculations are compared with experimental results. In addition, the tunneling conductance through all three quantum dots in series is studied. Quantum cellular automata processes are identified, which are where charge reconfiguration between two dots occurs in response to the addition of an electron in the third dot.
dc.description12 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0703450
dc.identifierhttp://arxiv.org/abs/cond-mat/0703450
dc.identifierPhys. Rev. B 76, 075306 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.075306
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137117
dc.subjectMesoscale and Nanoscale Physics
dc.titleAn electrostatically defined serial triple quantum dot charged with few electrons
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