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cond-mat.quant-gas2022★ 11 cited
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…
cond-mat.quant-gas2020★ 16 cited
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…