Composite Fermion Description of Correlated Electrons in Quantum Dots: Low Zeeman Energy Limit

TL;DR

This paper investigates how composite fermion theory describes correlated electrons in quantum dots under low Zeeman energy, showing that the non-interacting composite fermion spectrum captures primary features with weak residual interactions.

Contribution

It demonstrates that composite fermion theory effectively models electrons in quantum dots at low Zeeman energy, with minimal residual interactions.

Findings

Non-interacting composite fermion spectrum captures main features.

Residual interactions between composite fermions are weak.

The theory applies well in the low Zeeman energy limit.

Abstract

We study the applicability of composite fermion theory to electrons in two-dimensional parabolically-confined quantum dots in a strong perpendicular magnetic field in the limit of low Zeeman energy. The non-interacting composite fermion spectrum correctly specifies the primary features of this system. Additional features are relatively small, indicating that the residual interaction between the composite fermions is weak. \footnote{Published in Phys. Rev. B {\bf 52}, 2798 (1995).}