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

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

1999-02-08

arxiv.org/abs/cond-mat/9902099v1

Phys. Rev. Lett. 82, 5329 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 eps figures

Scientific paper

10.1103/PhysRevLett.82.5329

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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