1208.4182 (G. Vignale et al.)

Comment on "Density and Physical Current Density Functional Theory" by
Xiao-Yin Pan and Viraht Sahni, Int. J. Quant. Chem. 110, 2833 (2010)    [PDF]

G. Vignale, C. A. Ullrich, Klaus Capelle

This comment criticizes the above paper by Xiao-Yin Pan and Viraht Sahni. It is shown that their formulation of "Physical Current Density Functional Theory" is, at best, a garbled reformulation of the Vignale-Rasolt current-density functional theory, and, at worst, a potential source of mistakes insofar as it complicates the formulation of the variational principle and prevents the constrained search construction of the universal functional.

View original: http://arxiv.org/abs/1208.4182