3 papers
cond-mat.str-el2024
Dirac points and topological phases in correlated altermagnets
Lorenzo Del Re
We explore a two-dimensional Hubbard model adapted to host altermagnetic states. Utilizing Hartree-Fock (HF) and dynamical mean field theory (DMFT), we uncover that the magnetic so…
cond-mat.str-el2023
Two-particle self-consistent approach for broken symmetry phases
Lorenzo Del Re
Spontaneous symmetry breaking of interacting fermion systems constitutes a major challenge for many-body theory due to the proliferation of new independent scattering channels once…
cond-mat.str-el2023
Thermodynamic Stability at the Two-Particle Level
A. Kowalski, M. Reitner, L. Del Re +6
We show how the stability conditions for a system of interacting fermions that conventionally involve variations of thermodynamic potentials can be rewritten in terms of one- and t…