38 citations · 102 across the 8 of their papers we have counts for
9 papers
Screening in the Heitler-London Model: Revisiting the Bonding and Antibonding States of the Hydrogen Molecule
Washington P. da Silva, Daniel Vieira, Jonas Maziero +1
The present manuscript revisits one of the earliest approaches to treating molecular systems within the Schrödinger formalism of quantum mechanics: the Heitler-London (HL) model. O…
Simulating magnetized neutron stars with discontinuous Galerkin methods
Nils Deppe, François Hébert, Lawrence E. Kidder +33
Discontinuous Galerkin methods are popular because they can achieve high order where the solution is smooth, because they can capture shocks while needing only nearest-neighbor com…
Rate Constants for Fine-Structure Excitations in O-H Collisions with Error Bars Obtained by Machine Learning
Daniel Vieira, Roman Krems
We present an approach using a combination of coupled channel scattering calculations with a machine- learning technique based on Gaussian Process regression to determine the sensi…
Strong correlations in density-functional theory: A model of spin-charge and spin-orbital separations
Daniel Vieira
It is known that the separation of electrons into spinons and chargons, the spin-charge separation, plays a decisive role when describing strongly correlated density distributions…
Simple parametrization for the ground-state energy of the infinite Hubbard chain incorporating Mott physics, spin-dependent phenomena and spatial inhomogeneity
Vivian V. França, Daniel Vieira, Klaus Capelle
Simple analytical parametrizations for the ground-state energy of the one-dimensional repulsive Hubbard model are developed. The charge-dependence of the energy is parametrized usi…
Physical signatures of discontinuities of the time-dependent exchange-correlation potential
Daniel Vieira, K. Capelle, C. A. Ullrich
The exact exchange-correlation (XC) potential in time-dependent density-functional theory (TDDFT) is known to develop steps and discontinuities upon change of the particle number i…