Changing the Electronic Spectrum of a Quantum Dot by Adding Electrons

S. R. Patel, D. R. Stewart, C. M. Marcus, M. Gökçedağ, Y. Alhassid, A. D. Stone, C. I. Duruöz, J. S. Harris
1998 Physical Review Letters  
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.
doi:10.1103/physrevlett.81.5900 fatcat:2z4e35opt5ak3g3n4r7lpaojtm