Rotational levels in quantum dots

TL;DR

This paper extends a method to analyze the low energy spectra of isotropic quantum dots, predicting phenomena like spin blockades in transport for small, shallowly confined dots with strong electron correlations.

Contribution

The pocket state method is generalized to include continuous rotations, enabling detailed predictions for quantum dots with shallow confinements and few electrons.

Findings

Predicted occurrence of spin blockades in transport.

Provided detailed spectra for small, shallow quantum dots.

Extended the pocket state method to account for rotations.

Abstract

Low energy spectra of isotropic quantum dots are calculated in the regime of low electron densities where Coulomb interaction causes strong correlations. The earlier developed pocket state method is generalized to allow for continuous rotations. Detailed predictions are made for dots of shallow confinements and small particle numbers, including the occurance of spin blockades in transport.