Transitions between electron-molecule states in electrostatic quantum dots

TL;DR

This paper investigates intermediate spin states in 5-electron electrostatic quantum dots under magnetic fields, revealing they are mixed symmetry states with superpositions of electron-molecule configurations, using exact diagonalization and group theory.

Contribution

It introduces a detailed analysis of intermediate spin states as mixed symmetry states with superpositions of configurations in electrostatic quantum dots.

Findings

Intermediate spin states are mixed symmetry states.

Superpositions of 5- and 4-fold configurations reproduce correlation functions.

Exact diagonalization confirms the superposition model accuracy.

Abstract

Intermediate spin states that occur in electrostatic dots in the magnetic field regime just beyond the maximum density droplet are investigated. The 5-electron system is studied with exact diagonalization and group theory. The results indicate that the intermediate spin states are mixed symmetry states with a superposition of 5- and 4-fold electron-molecule configurations. A superposition of 5- and 4-fold correlation functions is found to reproduce the exact mixed symmetry pair correlation function to around 2%.