TY - JOUR
T1 - Exchange-correlation orbital functionals in current-density functional theory
T2 - Application to a quantum dot in magnetic fields
AU - Helbig, N.
AU - Kurth, S.
AU - Pittalis, S.
AU - Räsänen, E.
AU - Gross, E. K.U.
PY - 2008/6/5
Y1 - 2008/6/5
N2 - 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 the 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.
AB - 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 the 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.
UR - http://www.scopus.com/inward/record.url?scp=44949083373&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.77.245106
DO - 10.1103/PhysRevB.77.245106
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AN - SCOPUS:44949083373
SN - 1098-0121
VL - 77
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 24
M1 - 245106
ER -