Journal
PHYSICAL REVIEW B
Volume 67, Issue 20, Pages -Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.67.205327
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We study a model quantum dot system in an external magnetic field by using both spin-density-functional theory and current-spin density-functional theory. The theories are used with local approximations for the spin-density and vorticity. The reliabilities of different parametrizations for the exchange-correlation functionals are tested by comparing the ensuing energetics with quantum Monte Carlo results. The limit where the vorticity dependence should be used in the exchange-correlation functionals is discussed.
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