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Mapping the Chemical Potential Landscape of a Triple Quantum Dot

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 نشر من قبل Matthew Broome
 تاريخ النشر 2016
  مجال البحث فيزياء
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We investigate the non-equilibrium charge dynamics of a triple quantum dot and demonstrate how electron transport through these systems can give rise to non-trivial tunnelling paths. Using a real-time charge sensing method we establish tunnelling pathways taken by particular electrons under well-defined electrostatic configurations. We show how these measurements map to the chemical potentials for different charge states across the system. We use a modified Hubbard Hamiltonian to describe the system dynamics and show that it reproduces all experimental observations.



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