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Density Modulations and Addition Spectra of Interacting Electrons in Disordered Quantum Dots

Paul N. Walker·Yuval Gefen·Gilles Montambaux
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Abstract

We analyse the ground state of spinless fermions on a lattice in a weakly disordered potential, interacting via a nearest neighbour interaction, by applying the self-consistent Hartree-Fock approximation. We find that charge density modulations emerge progressively when r_s >1, even away from half-filling, with only short-range density correlations. Classical geometry dependent "magic numbers" can show up in the addition spectrum which are remarkably robust against quantum fluctuations and disorder averaging.

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Paul N. Walker, Yuval Gefen, Gilles Montambaux. 1999-02-08. Density Modulations and Addition Spectra of Interacting Electrons in Disordered Quantum Dots. https://doi.org/10.1103/physrevlett.82.5329

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