3 citations · 3 across the 4 of their papers we have counts for
6 papers
Multiloop functional renormalization group from single bosons
Kilian Fraboulet, Aiman Al-Eryani, Sarah Heinzelmann +2
The functional renormalization group (fRG) is an established tool in the treatment of correlated electron systems, notably for the description of competing instabilities. In recent…
Functional renormalization with interaction flows: A single-boson exchange perspective and application to electron-phonon systems
Aiman Al-Eryani, Marcel Gievers, Kilian Fraboulet
The functional renormalization group (fRG) is acknowledged as a powerful tool in quantum many-body physics and beyond. On the technical side, conventional implementations of the fR…
BosonFlow: A C++ codebase for dynamic fRG and single-boson exchange in correlated fermion systems
Aiman Al-Eryani, Miriam Patricolo, Kilian Fraboulet
We present a unified C++ implementation of the functional renormalization group and the parquet equations within the single-boson exchange formalism for several paradigmatic tight-…
Single-boson exchange formulation of the Schwinger-Dyson equation and its application to the functional renormalization group
Miriam Patricolo, Marcel Gievers, Kilian Fraboulet +6
We extend the recently introduced single-boson exchange formulation to the computation of the self-energy from the Schwinger--Dyson equation (SDE). In particular, we derive its exp…
Path-integral approaches to strongly-coupled quantum many-body systems
Kilian Fraboulet
The core of this thesis is the path-integral formulation of quantum field theory and its ability to describe strongly-coupled quantum many-body systems of finite size. Collective b…
Screening and effective RPA-like charge susceptibility in the extended Hubbard model
Aiman Al-Eryani, Sarah Heinzelmann, Kilian Fraboulet +2
We generalize the recently introduced single-boson exchange formalism to nonlocal interactions. In the functional renormalization group application to the extended Hubbard model in…