In this study, two-electron one- and two-center Coulomb integrals with the same different screening parameters are investigated numerically in real Slater type orbital (STO) basis using Fourier transform method. momentum space firstly, for atomic, i.e. one-center, calculated, analytical expressions obtained terms of binomial coefficients. Then, solutions made modified Bessel function second kin...

A simple expression to compute the quantum discord between two orbitals in fermion systems is derived using parity superselection rule. As correlation depends on basis chosen, we discuss a special orbital basis, natural one. We show that correlations pairs disappear when pairing tensor zero, i.e., particle number symmetry preserved. The Hartree-Fock within Slater determinant state, Hartree-Fock...

rehabilitation of facial defects is a complex task, requiring an individualized design of the technique for each patient. the disfigurement associated with the loss of an eye may result in significant physical and emotional problems. various treatment modalities are available, one of which is the use of implants. although implant-supported orbital prosthesis has a superior outcome, it may not b...

Neopoliocoris nom. n., a new substitute name is proposed for Poliocoris Slater, 1994 (Hemiptera: Heteroptera: Rhyparochromidae), preoccupied by Poliocoris Kirkaldy, 1910 (Hemiptera: Heteroptera: Pentatomidae). A new combination, Neopoliocorisumbrosus (Slater, 1994), comb. n. is proposed for Poliocorisumbrosus Slater, 1994.

We study the interplay of strong electron correlations and intratriangle spin exchange at two-thirds filling single-orbital Hubbard model on decorated honeycomb lattice using rotationally invariant slave bosons. find that tunes between a spin-1 Mott insulator, metal, spin-0 insulator when is antiferromagnetic. The insulators occur from effective multiorbital interactions are adiabatically conne...