Abstract
We investigate the addition spectrum of disordered quantum dots containing spinless interacting fermions using the self-consistent Hartree-Fock approximation. We concentrate on the regime ${r}_{s}\ensuremath{\gtrsim}1,$ with finite dimensionless conductance $g.$ We find that in this approximation the peak spacing fluctuations do not scale with the mean single-particle level spacing for either Coulomb or nearest-neighbor interactions when ${r}_{s}\ensuremath{\gtrsim}1.$ We also show that Koopmans' approximation to the addition spectrum can lead to errors that are of order the mean level spacing or larger, both in the mean addition spectrum peak spacings, and in the peak spacing fluctuations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
