Europhys. Lett, 47 (6), pp. 708-714 (1999)
The addition spectrum of interacting electrons: Parametric dependence
L. Bonci and R. Berkovits
The Minerva Center for the Physics of Mesoscopics, Fractals and
Department of Physics, Bar-Ilan University - Ramat-Gan 52900, Israel
(received 26 January 1999; accepted in final form 15 July 1999)
PACS. 73.23Hk - Coulomb blockade; single-electron tunneling.
PACS. 05.45 - Theory and models of chaotic systems.
PACS. 73.20Dx - Electron states in low-dimensional structures (superlattices, quantum well structures and multylayers).
The addition spectrum of a disordered stadium is studied for up to 120 electrons using the self-consistent Hartree-Fock approximation for different values of the dimensionless conductance and in the presence and absence of a neutralizing background. In all cases a Gaussian distribution of the addition spectrum is reached for . An empirical scaling for the distribution width in the presence of a neutralizing background is tested and seems to describe rather well its dependence on the dimensionless conductance.
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