Exchange-correlation orbital functionals in current-density-functional theory: Application to a quantum dot in magnetic fields

Details Exchange-correlation orbital functionals in current-density-functional theory: Application to a quantum dot in magnetic fields Exchange-correlation orbital functionals in current-density-functional theory: Application to a quantum dot in magnetic fields

2006-05-24

arxiv.org/abs/cond-mat/0605599v3

Phys. Rev. B 77, 245106 (2008)

Physics

Condensed Matter

Materials Science

5 pages, 2 figures, submitted to PRB

Scientific paper

10.1103/PhysRevB.77.245106

The description of interacting many-electron systems in external magnetic fields is considered in the framework of the optimized effective potential method extended to current-spin-density functional theory. As a case study, a two-dimensional quantum dot in external magnetic fields is investigated. Excellent agreement with quantum Monte Carlo results is obtained when self-interaction corrected correlation energies from the standard local spin-density approximation are added to exact-exchange results. Full self-consistency within the complete current-spin-density-functional framework is found to be of minor importance.

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