The effects of compressible and incompressible states on the FIR-absorption of quantum wires and dots in a magnetic field

TL;DR

This paper studies how different electronic states influence far-infrared absorption in quantum wires and dots under magnetic fields, using a Hartree approximation to match experimental observations.

Contribution

It introduces a theoretical analysis of FIR-absorption considering compressible and incompressible states, aligning with experimental data.

Findings

Dispersion of collective excitations matches experimental results

Electron-electron interactions significantly affect FIR-absorption

Differentiates effects of compressible vs. incompressible states

Abstract

We investigate the effects of compressible and incompressible states on the FIR-absorption of quantum wires and dots in a homogeneous perpendicular magnetic field. The electron-electron interaction is treated in the Hartree approximation at a finite low temperature. The calculated dispersion of the collective excitations reproduces several experimental results.