1.2k citations · 7.2k across the 58 of their papers we have counts for
58 papers
Baldereschi mean value points for three-dimensional Bravais lattices
N. D. Drummond
The Baldereschi point of a crystal is a wavevector in the Brillouin zone at which every smooth periodic function of wavevector lies close to its mean value. Although originally int…
Correlation energy of the spin-polarized electron liquid by quantum Monte Carlo
Sam Azadi, N. D. Drummond, Sam. M. Vinko
Variational and diffusion quantum Monte Carlo (VMC and DMC) methods with Slater-Jastrow-backflow trial wave functions are used to study the spin-polarized three-dimensional uniform…
Quantum Monte Carlo study of Doppler broadening of positron annihilation radiation in semiconductors and insulators
Kristoffer Simula, Jan Härkönen, Iuliia Zhelezova +3
Positron annihilation in solid state matter can be utilized to detect and identify open-volume defects. The momentum distribution of the annihilation radiation is an important obse…
Wire width and density dependence of the crossover in the peak of the static structure factor from in one-dimensional paramagnetic electron gases
Ankush Girdhar, Vinod Ashokan, Rajesh O. Sharma +2
We use the variational quantum Monte Carlo (VMC) method to study the wire width () and electron density () dependences of the ground-state properties of quasi-one-di…
Polaron spectroscopy of a bilayer excitonic insulator
Ivan Amelio, Neil Drummond, Eugene Demler +2
Recent advances in fabrication of two dimensional materials and their moiré heterostructures have opened up new avenues for realization of ground-state excitonic insulators, where…
Quantum Monte Carlo study of three-dimensional Coulomb complexes: trions and biexcitons; hydrogen molecules and ions; helium hydride cations; and positronic and muonic complexes
F Marsusi, E. Mostaani, N. D. Drummond
Three-dimensional (3D) excitonic complexes influence the optoelectronic properties of bulk semiconductors. More generally, correlated few-particle molecules and ions, held together…