Localization-Delocalization Transition in a Quantum Dot

Details Localization-Delocalization Transition in a Quantum Dot Localization-Delocalization Transition in a Quantum Dot

2000-11-30

arxiv.org/abs/cond-mat/0011515v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 1 figure

Scientific paper

10.1016/S1386-9477(01)00172-2

A model Hamiltonian is proposed in order to understand the localization-delocalization transition in a quantum dot, where there are two gate voltages: top and side. Considering energetically favorable degrees of freedom only, we achieve a finite dimensional Hilbert space. As a result, exact diagonalization is performed to find the ground state energy of the system. It is the purpose to explain the peculiar pattern of the electron addition energy measured in the dot of two gate voltages.

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