2 papers
cond-mat.str-el2026
Fundamental limitations of single-particle Green's-function zeroes as probes of many-body topology
Emile Pangburn, Olivier Gingras
We show that topological invariants constructed from single-particle Green's functions (GFs) cannot reliably diagnose the topology of interacting many-body states. Using coupled in…
cond-mat.mtrl-sci2025
Abinit 2025: New Capabilities for the Predictive Modeling of Solids and Nanomaterials
Matthieu J. Verstraete, Joao Abreu, Guillaume E. Allemand +71
Abinit is a widely used scientific software package implementing density functional theory and many related functionalities for excited states and response properties. This paper p…