Positron annihilation spectroscopy is particularly suitable for studying vacancy-type
defects<? format?> in semiconductors. Combining state-of-the-art experimental and …

Quantum Monte Carlo calculations of the relaxation energy, pair-correlation function, and
annihilating-pair momentum density are presented for a positron immersed in a …

We present an analysis of positron lifetimes in solids with unprecedented depth. Instead of
modeling correlation effects with density functionals, we study positron-electron wave …

This work presents an extension of the projector operator embedding scheme of Manby et
al.[J. Chem. Theory Comput. 8, 2564 (2012)] in a multicomponent (MC) framework. Here, a …

We present correlation-polarization potentials for the calculation of scattering cross sections
of positrons with atoms and molecules. The potentials are constructed from a short-range …

We have determined integral and differential elastic cross sections for positron scattering
with atomic F and F2 molecules from 0.01 to 1000 eV with different theoretical approaches …

The Fermi surface topology plays an important role in the macroscopic properties of metals.
It can be particularly sensitive to electron correlation, which appears to be especially …

Positron annihilation lifetime spectroscopy is a unique technique to probe the defect
structure of crystalline solids. To distinguish different defect states, accurate calculation of …

The interaction between a single hole and a two-dimensional, paramagnetic, homogeneous
electron gas is studied using diffusion quantum Monte Carlo simulations. Electron-hole …

We discuss positron-annihilation lifetimes for a set of illustrative bulk materials within the
framework of the weighted-density approximation (WDA). The WDA can correctly describe …