99 citations · 243 across the 5 of their papers we have counts for
5 papers
The Adaptive Shift Method in Full Configuration Interaction Quantum Monte Carlo: Development and Applications
Khaldoon Ghanem, Kai Guther, Ali Alavi
In a recent paper, we proposed the adaptive shift method for correcting the undersampling bias of the initiator-FCIQMC. The method allows faster convergence with the number of walk…
NECI: N-Electron Configuration Interaction with emphasis on state-of-the-art stochastic methods
Kai Guther, Robert J. Anderson, Nick S. Blunt +22
We present NECI, a state-of-the-art implementation of the Full Configuration Interaction Quantum Monte Carlo algorithm, a method based on a stochastic application of the Hamiltonia…
Similarity transformation of the electronic Schrödinger equation via Jastrow factorisation
Aron J. Cohen, Hongjun Luo, Kai Guther +3
By expressing the electronic wavefunction in an explicitly-correlated (Jastrow-factorised) form, a similarity-transformed effective Hamiltonian can be derived. The effective Hamilt…
Time propagation and spectroscopy of Fermionic systems using a stochastic technique
Kai Guther, Werner Dobrautz, Olle Gunnarsson +1
We present a stochastic method for solving the time-dependent Schrödinger equation, generalizing a ground-state full configuration interaction Quantum Monte Carlo method. By perfor…
Ising anyonic topological phase of interacting Fermions in one dimension
Kai Guther, Nicolai Lang, Hans Peter Büchler
We study a microscopic model of interacting fermions in a ladder setup, where the total number of particles is conserved. At a special point, the ground state is known and gives ri…