3 papers
math-ph2025
Topological phases of non-interacting systems: A general approach based on states
Giuseppe De Nittis
In this work we provide a classification scheme for topological phases of certain systems whose observable algebra is described by a trivial -bundles. The classification is ba…
math-ph2020
Quantization of edge currents along magnetic interfaces: A K-theory approach
Giuseppe De Nittis, Esteban Gutiérrez
The purpose of this paper is to investigate the propagation of topological currents along magnetic interfaces (also known as magnetic walls) of a two-dimensional material. We consi…
math-ph2018
Equivalence of Electric, Magnetic and Electromagnetic Chern Numbers for Topological Photonic Crystals
Giuseppe De Nittis, Max Lein
Haldane predicted an analog of the Integer Quantum Hall Effect in gyrotropic photonic crystals, where the net number of electromagnetic edge modes moving left-to-right is given by…