16 citations · 45 across the 4 of their papers we have counts for
4 papers
Polaron-Depleton Transition in the Yrast Excitations of a One-Dimensional Bose Gas with a Mobile Impurity
Mingrui Yang, Matija Čufar, Elke Pahl +1
We present exact numerical data for the lowest-energy momentum eigenstates (yrast states) of a repulsive spin impurity in a one-dimensional Bose gas using full configuration intera…
Stochastic differential equation approach to understanding the population control bias in full configuration interaction quantum Monte Carlo
Joachim Brand, Mingrui Yang, Elke Pahl
We investigate a systematic statistical bias found in full configuration quantum Monte Carlo (FCIQMC) that originates from controlling a walker population with a fluctuating shift…
Improved walker population control for full configuration interaction quantum Monte Carlo
Mingrui Yang, Elke Pahl, Joachim Brand
Full configuration interaction quantum Monte Carlo (FCIQMC) is a stochastic approach for finding the ground state of a quantum many-body Hamiltonian. It is based on the dynamical e…
Frozen local hole approximation
Elke Pahl, Uwe Birkenheuer
The frozen local hole approximation (FLHA) is an adiabatic approximation which is aimed to simplify the correlation calculations of valence and conduction bands of solids and polym…