62 citations · 128 across the 7 of their papers we have counts for
6 papers
Airy gas model: From three to reduced dimensions
K. Bencheikh, A. Putaja, E. Rasanen
By using the propagator of linear potential as a main tool, we extend the Airy gas model, originally developed for the three-dimensional () edge electron gas, to systems in re…
On the validity of power functionals for the homogeneous electron gas in reduced.density-matrix-functional theory
A. Putaja, F. G. Eich, T. Baldsiefen +1
Physically valid and numerically efficient approximations for the exchange and correlation energy are critical for reduced density-matrix functional theory to become a widely used…
On the Kirzhnits gradient expansion in two dimensions
A. Putaja, E. Rasanen, R. van Leeuwen +2
We derive the semiclassical Kirzhnits expansion of the D-dimensional one-particle density matrix up to the second order in . We focus on the two-dimensional (2D) case and sh…
Constraints of reduced density-matrix functional theory for the two-dimensional homogeneous electron gas
A. Putaja, E. Rasanen
Reduced density-matrix functional theory (RDMFT) has become an appealing alternative to density-functional theory to describe electronic properties of highly-correlated systems. He…
Ultrafast sequential charge transfer in a double quantum dot
A. Putaja, E. Rasanen
We use optimal control theory to construct external electric fields which coherently transfer the electronic charge in a double quantum-dot system. Without truncation of the eigens…
Energy-momentum complexes in f(R) theories of gravity
Tuomas Multamaki, Antti Putaja, Elias C. Vagenas +1
Despite the fact that modified theories of gravity, in particular the f(R) gravity models have attracted much attention in the last years, the problem of the energy localization in…