22 citations · 46 across the 6 of their papers we have counts for
6 papers
Revealing the regularities of electron correlation energies associated with valence electrons in atoms in the first three rows of the periodic table
G. -Q. Hai, L. Cândido, B. G. A. Brito +1
Electronic correlation is a complex many-body effect and the correlation energy depends on the specific electronic structure and spatial distribution of electrons in each atom and…
Electron pairing: from metastable electron pair to bipolaron
Guo-Qiang Hai, Ladir Cândido, Braulio G. A. Brito +1
Starting from the shell structure in atoms and the significant correlation within electron pairs, we distinguish the exchange-correlation effects between two electrons of opposite…
New many-particle system consisting of electron pairs and holes in a two-dimensional crystal
Guo-Qiang Hai, Ladir Cândido
When atoms are organized into a crystal, the single-electron energy levels of individual atoms form energy bands. However, there also exist electron-pair states in atoms. We found…
Formation energy and interaction of point defects in two-dimensional colloidal crystals
L. C. DaSilva, L. Candido, L. da F. Costa +1
The manipulation of individual colloidal particles using optical tweezers has allowed vacancies to be created in two-dimensional (2d) colloidal crystals, with unprecedented possibi…
Melting temperature of screened Wigner crystal on helium films by molecular dynamics
J. A. R. da Cunha, Ladir Candido
Using molecular dynamics (MD) simulation, we have calculated the melting temperature of two-dimensional electron systems on Å-Åhelium films supported by substrates of d…
The Magnetic Ordering of the 3d Wigner Crystal
Ladir Candido, B. Bernu, D. M. Ceperley
Using Path Integral Monte Carlo, we have calculated exchange frequencies as electrons undergo ring exchanges of 2, 3 and 4 electrons in a ``clean'' 3d Wigner crystal (bcc lattice)…