55 citations · 121 across the 12 of their papers we have counts for
12 papers
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…
Liouvillian recursion method for the electronic Green's function
Alexandre Foley
In this paper, we present a framework for the recursion method applied within the Liouvillian formalism, enabling the computation of response functions for a wide range of quantum…
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…
Pyqcm: An open-source Python library for quantum cluster methods
Théo N. Dionne, Alexandre Foley, Moïse Rousseau +1
Pyqcm is a Python/C++ library that implements a few quantum cluster methods with an exact diagonalization impurity solver. Quantum cluster methods are used in the study of strongly…
Direct solution of multiple excitations in a matrix product state with block Lanczos
Thomas E. Baker, Alexandre Foley, David Sénéchal
Matrix product state methods are known to be efficient for computing ground states of local, gapped Hamiltonians, particularly in one dimension. We introduce the multi-targeted den…
Fermi arcs vs hole pockets: periodization of a cellular two-band model
S. Verret, A. Foley, D. Sénéchal +2
It is still debated whether the low-doping Fermi surface of cuprates is composed of hole pockets or of disconnected Fermi arcs. Results from cellular dynamical mean field theory (c…