Reduced density-matrix functional theory in quantum Hall systems

Abstract

We apply reduced density-matrix functional theory to the parabolically confined quantum Hall droplet in the spin-frozen strong magnetic field regime. One-body reduced density matrix functional method performs remarkably well in obtaining ground states, energies, and observables derivable from the one-body reduced density matrix for a wide range of system sizes. At the strongly correlated regime, the results go well beyond what can be obtained with the density functional theory. However, some of the detailed properties of the system, such as the edge Green's function, are not produced correctly unless we use the much heavier two-body reduced density matrix method.

13 pages, 7 figures

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Cited by in corpus (9)

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• Ionization potentials and electron affinities from reduced density matrix functional theory
• Approximate energy functionals for one-body reduced density matrix functional theory from many-body perturbation theory
• Constraints of reduced density-matrix functional theory for the two-dimensional homogeneous electron gas
• On the validity of power functionals for the homogeneous electron gas in reduced.density-matrix-functional theory
• Natural orbitals and their occupation numbers for free anyons in the magnetic gauge