250 citations · 2k across the 41 of their papers we have counts for
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Spin gaps and spin-flip energies in density-functional theory
K. Capelle, G. Vignale, C. A. Ullrich
Energy gaps are crucial aspects of the electronic structure of finite and extended systems. Whereas much is known about how to define and calculate charge gaps in density-functiona…
Gauge-Invariant Formulation of Spin-Current-Density Functional Theory
Saeed H. Abedinpour, G. Vignale, I. V. Tokatly
Spin-currents and non-abelian gauge potentials in electronic systems can be treated by spin-current-density functional theory, whose main input is the exchange-correlation (xc) ene…
Time-dependent current-density functional theory for the friction of ions in an interacting electron gas
V. U. Nazarov, J. M. Pitarke, Y. Takada +2
Due to the strongly nonlocal nature of the {\em scalar} exchange and correlation (xc) kernel of the time-dependent density-functional theory (TDDFT), t…
On the "Causality Paradox" of Time-Dependent Density Functional Theory
G. Vignale
I show that the so-called causality paradox of time-dependent density functional theory arises from an incorrect formulation of the variational principle for the time evolution of…
Nonuniqueness and derivative discontinuities in density-functional theories for current-carrying and superconducting systems
K. Capelle, G. Vignale
Current-carrying and superconducting systems can be treated within density-functional theory if suitable additional density variables (the current density and the superconducting o…
Spin currents and spin dynamics in time-dependent density-functional theory
K. Capelle, G. Vignale, B. L. Gyorffy
We derive and analyse the equation of motion for the spin degrees of freedom within time-dependent spin-density-functional theory (TD-SDFT). Results are (i) a prescription for obta…