Changing the Electronic Spectrum of a Quantum Dot by Adding Electrons

Details Changing the Electronic Spectrum of a Quantum Dot by Adding Electrons Changing the Electronic Spectrum of a Quantum Dot by Adding Electrons

1998-08-16

arxiv.org/abs/cond-mat/9808166v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

related papers at http://www.stanford.edu/group/MarcusLab/grouppubs.html

Scientific paper

10.1103/PhysRevLett.81.5900

The temperature dependence of Coulomb blockade peak height correlation is used to investigate how adding electrons to a quantum dot alters or "scrambles" its electronic spectrum. Deviations from finite-temperature random matrix theory with an unchanging spectrum indicate spectral scrambling after a small number of electrons are added. Enhanced peak-to-peak correlations at low temperature are observed. Peak height statistics show similar behavior in several dot configurations despite significant differences in correlations.

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