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Exchange correlation vector potentials and vorticity-dependent exchange-correlation energy densities for two-dimensional systems

Wensauer, Andreas ; Rössler, Ulrich
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Date of publication of this fulltext: 05 Aug 2009 13:27


Abstract

We present an approach to calculating the scalar and vector exchange-correlation potentials from current-carrying ground states of two-dimensional quantum dots. From these exchange-correlation potentials we derive exchange-correlation energy densities and examine their vorticity (or current) dependence. Compared with parametrizations of current-induced effects in the literature we find an increased significance of corrections due to paramagnetic current densities.


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