463 citations · 1.8k across the 32 of their papers we have counts for
6 papers · 1 filter
Chiral d-wave Superconductivity in a Triangular Surface Lattice Mediated by Long-range Interaction
Xiaodong Cao, Thomas Ayral, Zhicheng Zhong +3
Correlated ad-atom systems on the Si(111) surface have recently attracted an increased attention as strongly correlated systems with a rich phase diagram. We study these materials…
Dynamical Mean Field Theory, Density-Matrix Embedding Theory and Rotationally Invariant Slave Bosons: a Unified Perspective
Thomas Ayral, Tsung-Han Lee, Gabriel Kotliar
We present a unified perspective on Dynamical Mean Field Theory (DMFT), Density-Matrix Embedding Theory (DMET) and Rotationally Invariant Slave Bosons (RISB). We show that DMET can…
Non-local Coulomb interactions on the triangular lattice in the high-doping regime: Spectra and charge dynamics from Extended Dynamical Mean Field Theory
Sophie Chauvin, Thomas Ayral, Lucia Reining +1
We explore the two-dimensional extended Hubbard model on the triangular lattice in the high doping regime. On-site and nearest-neighbour repulsive interactions are treated in a non…
The Fierz convergence criterion: a controlled approach to strongly-interacting systems with small embedded clusters
Thomas Ayral, Jaksa Vucicevic, Olivier Parcollet
We present an embedded-cluster method, based on the TRILEX formalism. It turns the Fierz ambiguity, inherent to approaches based on a bosonic decoupling of local fermionic interact…
TRILEX and +EDMFT approach to -wave superconductivity in the Hubbard model
Jaksa Vucicevic, Thomas Ayral, Olivier Parcollet
We generalize the recently introduced TRILEX approach (TRiply Irreducible Local EXpansion) to superconducting phases. The method treats simultaneously Mott and spin-fluctuation phy…
Influence of Fock exchange in combined many-body perturbation and dynamical mean field theory
Thomas Ayral, Silke Biermann, Philipp Werner +1
In electronic systems with long-range Coulomb interaction, the nonlocal Fock exchange term has a band-widening effect. While this effect is included in combined many-body perturbat…