221 citations · 944 across the 14 of their papers we have counts for
5 papers · 1 filter
High-order expansion around BCS theory
G. Spada, R. Rossi, F. Simkovic +4
We demonstrate that summation of connected diagrams to high order starting from a BCS hamiltonian is a viable generic unbiased approach for strongly correlated fermions in supercon…
Physical and unphysical regimes of self-consistent many-body perturbation theory
K. Van Houcke, E. Kozik, R. Rossi +2
In the standard framework of self-consistent many-body perturbation theory, the skeleton series for the self-energy is truncated at a finite order and plugged into th…
Polynomial complexity despite the fermionic sign
R. Rossi, N. Prokof'ev, B. Svistunov +2
It is commonly believed that in quantum Monte Carlo approaches to fermionic many- body problems, the infamous sign problem generically implies prohibitively large computational tim…
Dielectric function and thermodynamic properties of jellium in the GW approximation
Kris Van Houcke, Igor S. Tupitsyn, Andrey S. Mishchenko +1
The fully self-consistent GW approximation is an established method for electronic structure calculations. Its most serious deficiency is known to be an incorrect prediction of the…
Diagrammatic Monte Carlo for Correlated Fermions
E. Kozik, K. Van Houcke, E. Gull +4
We show that Monte Carlo sampling of the Feynman diagrammatic series (DiagMC) can be used for tackling hard fermionic quantum many-body problems in the thermodynamic limit by prese…