2 papers
quant-ph2026
Computing Green's functions and improving ground state energy estimation on quantum computers with Liouvillian recursion
Jérôme Leblanc, Olivier Nahman-Lévesque, Julien Forget +3
We present a quantum-classical hybrid implementation of the Liouvillian recursion method to compute many-body Green's functions using a quantum computer. From an approximate ground…
cond-mat.str-el2024
An occupation number quantum subspace expansion approach to compute the single-particle Green function: an opportunity for noise filtering
B. Gauthier, P. Rosenberg, A. Foley +1
We introduce a hybrid quantum-classical algorithm to compute the Green function for strongly correlated electrons on noisy intermediate-scale quantum (NISQ) devices. The technique…