Coulomb Blockade Fluctuations in Disordered Quantum Dots
介观与纳米尺度物理
2007-05-23 v1 强关联电子
摘要
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.
引用
@article{arxiv.cond-mat/9905136,
title = {Coulomb Blockade Fluctuations in Disordered Quantum Dots},
author = {Paul N. Walker and Gilles Montambaux and Yuval Gefen},
journal= {arXiv preprint arXiv:cond-mat/9905136},
year = {2007}
}
备注
Contribution for proceedings of Moriond 99, 5 pages, incl. moriond.sty. More details given in cond-mat/9902258