papers
Publications (2)
cond-mat.str-el2018
Linear response time-dependent density functional theory of the Hubbard dimer
D. J. Carrascal, J. Ferrer, N. Maitra +1
The asymmetric Hubbard dimer is used to study the density-dependence of the exact frequency-dependent kernel of linear-response time-dependent density functional theory. The exact…
cond-mat.str-el2012
Exact Kohn-Sham eigenstates versus quasiparticles in simple models of strongly correlated electrons
D. J. Carrascal, J. Ferrer
We present analytic expressions for the exact density functional and Kohn-Sham Hamiltonian of simple tight-binding models of correlated electrons. These are the single- and double-…