120 citations · 299 across the 8 of their papers we have counts for
8 papers
Superpositions of tree-tensor networks for single-reference ground states in the strong correlation regime
Dominic Bergeron
The fermionic many-body problem in the strong correlation regime is notoriously difficult to tackle. In a previous work (Phys. Rev. B 101, 045109 (2020)), we have proposed to exten…
Energy of fermionic ground states with low-entanglement single-reference expansions, and tensor-based strong-coupling extensions of the coupled-cluster method
Dominic Bergeron
We consider a fermionic system for which there exist a single-reference configuration-interaction (CI) expansion of the ground state wave function that converges, albeit not necess…
Maximum entropy analytic continuation for frequency-dependent transport coefficients with non-positive spectral weight
A. Reymbaut, A. -M. Gagnon, D. Bergeron +1
The computation of transport coefficients, even in linear response, is a major challenge for theoretical methods that rely on analytic continuation of correlations functions obtain…
Maximum Entropy Analytic Continuation for Spectral Functions with Non-Positive Spectral Weight
A. Reymbaut, D. Bergeron, A. -M. S. Tremblay
Information about the pairing mechanism for superconductivity is contained in the spectral weight for the anomalous (Gorkov) Green function. In the most general case, this spectral…
Algorithms for optimized maximum entropy and diagnostic tools for analytic continuation
Dominic Bergeron, A. -M. S. Tremblay
Analytic continuation of numerical data obtained in imaginary time or frequency has become an essential part of many branches of quantum computational physics. It is, however, an i…
Breakdown of Fermi liquid behavior at the (π,π)=2k_F spin-density wave quantum-critical point: the case of electron-doped cuprates
Dominic Bergeron, Debanjan Chowdhury, Matthias Punk +2
Many correlated materials display a quantum critical point between a paramagnetic and a SDW state. The SDW wave vector connects points (hot spots) on opposite sides of the Fermi su…