Low-lying excitations of Quantum Hall Droplets

Details Low-lying excitations of Quantum Hall Droplets Low-lying excitations of Quantum Hall Droplets

1994-12-12

arxiv.org/abs/cond-mat/9412051v1

Physics

Condensed Matter

Scientific paper

10.1103/PhysRevLett.74.5120

We present the adequate circular representation of charge density excitations in Quantum Hall droplets at filling factor 1. A novel set of operators describes magnetoexcitons with well defined both total and center-of-mass angular momentum. The accuracy of this description is shown by the high overlap of the magnetoexcitons with the exact eigenstates of a quantum dot in a magnetic field obtained from numerical calculations up to 20 electrons. From such magnetoexcitons we get a good understanding of total energies and spectral functions.

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