243 citations · 1.5k across the 22 of their papers we have counts for
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cond-mat.str-el2021
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…
cond-mat.str-el2017★ 44 cited
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…
cond-mat.str-el2015★ 43 cited
Skeleton series and multivaluedness of the self-energy functional in zero space-time dimensions
Riccardo Rossi, Felix Werner
Recently, Kozik, Ferrero and Georges have discovered numerically that for a family of fundamental models of interacting fermions, the self-energy is a multi-valued functiona…