On the scaling approach to electron-electron interactions in a chaotic quantum dot

Shaffique Adam, Piet W. Brouwer, Prashant Sharma

Published 2003-09-02Version 1

A scaling theory is used to study the low energy physics of electron-electron interactions in a double quantum dot. We show that the fact that electrons are delocalized over two quantum dots does not affect the instability criterion for the description of electron-electron interactions in terms of a ``universal interaction Hamiltonian''.