Semiclassical Theory of Coulomb Blockade Peak Heights in Chaotic Quantum Dots

Details Semiclassical Theory of Coulomb Blockade Peak Heights in Chaotic Quantum Dots Semiclassical Theory of Coulomb Blockade Peak Heights in Chaotic Quantum Dots

2001-01-04

arxiv.org/abs/cond-mat/0101034v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 color eps figures

Scientific paper

10.1103/PhysRevB.64.235329

We develop a semiclassical theory of Coulomb blockade peak heights in chaotic quantum dots. Using Berry's conjecture, we calculate the peak height distributions and the correlation functions. We demonstrate that the corrections to the corresponding results of the standard statistical theory are non-universal and can be expressed in terms of the classical periodic orbits of the dot that are well coupled to the leads. The main effect is an oscillatory dependence of the peak heights on any parameter which is varied; it is substantial for both symmetric and asymmetric lead placement. Surprisingly, these dynamical effects do not influence the full distribution of peak heights, but are clearly seen in the correlation function or power spectrum. For non-zero temperature, the correlation function obtained theoretically is in good agreement with that measured experimentally.

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