55 citations · 199 across the 7 of their papers we have counts for
7 papers
Time-dependent resonant tunneling transport: Keldysh and Kadanoff-Baym nonequilibrium Green's functions in an analytically soluble problem
Mariana M. Odashima, Caio H. Lewenkopf
Here we address two nonequilibrium Green's functions approaches for a resonant tunneling structure under a sudden switch of a bias. Our aim is to stress that the time-dependent Kel…
Pedagogical introduction to equilibrium Green's functions: condensed matter examples with numerical implementations
Mariana M. Odashima, Beatriz G. Prado, E. Vernek
The Green's function method has applications in several fields in Physics, from classical differential equations to quantum many-body problems. In the quantum context, Green's func…
Systematic investigation of a family of gradient-dependent functionals for solids
Philipp Haas, Fabien Tran, Peter Blaha +4
Eleven density functionals are compared with regard to their performance for the lattice constants of solids. We consider standard functionals, such as the local-density approximat…
Non-empirical hyper-generalized-gradient functionals constructed from the Lieb-Oxford bound
Mariana M. Odashima, K. Capelle
A simple and completely general representation of the exact exchange-correlation functional of density-functional theory is derived from the universal Lieb-Oxford bound, which hold…
Tightened Lieb-Oxford bound for systems of fixed particle number
Mariana M. Odashima, K. Capelle, S. B. Trickey
The Lieb-Oxford bound is a constraint upon approximate exchange-correlation functionals. We explore a non-empirical tightening of that bound in both universal and electron-number-d…
Empirical analysis of the Lieb-Oxford bound in ions and molecules
Mariana M. Odashima, K. Capelle
Universal properties of the Coulomb interaction energy apply to all many-electron systems. Bounds on the exchange-correlation energy, inparticular, are important for the constructi…