Coulomb Blockade Fluctuations in Disordered Quantum Dots

Details Coulomb Blockade Fluctuations in Disordered Quantum Dots Coulomb Blockade Fluctuations in Disordered Quantum Dots

1999-05-11

arxiv.org/abs/cond-mat/9905136v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Contribution for proceedings of Moriond 99, 5 pages, incl. moriond.sty. More details given in cond-mat/9902258

Scientific paper

We discuss some recent results on the statistics of the Coulomb Blockade in disordered quantum dots containing spinless interacting fermions using the self-consistent Hartree-Fock approximation. We concentrate on the regime r_s >~1, with finite dimensionless conductance g. We present significantly different results for the cases of a Coulomb and a nearest-neighbour bare interaction. We show that neglecting rearrangements when the particle number is changed (Koopmans' approximation) can lead to large errors, and show how the spectral statistics of the self-consistent single particle orbitals evolve with the interaction strength.

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