Geometry and topology in many-body physics
arXiv:2006.15567
Abstract
Some intensive observables of the electronic ground state in condensed matter have a geometrical or even topological nature. In this Review I present the geometrical observables whose expression is known in a full many-body framework, beyond band-structure theory. The formalism allows dealing with the general case of disordered and/or correlated many-electron systems.
To appear on "Topology, Entanglement, and Strong Correlations: Modeling and Simulation", Vol. 10. Verlag des Forschungszentrum Jülich, 2020. Editors: Eva Pavarini and Erik Koch