Creating and Probing New Types of Majorana Fermions on Boundaries of Topological Quantum Materials

From our general index theorem that characterises faithfully the boundary-bulk correspondence of topological superconductors and insulators, we reveal rigorously that four topologically distinct types of Majorana zero-modes can emerge at the ends of superconducting wires with various symmetry classes. More intriguingly, we establish three exotic one-dimensional models that have different types of topological charge of Majorana zero-modes, and disclose exactly the corresponding topological properties, which are respectively different from those of the Kitaev model because their topological essences (i.e., the types of topological charge) are distinct. Moreover, we also address their application in universal quantum manipulation, which is very promising for realising universal topological quantum computation.