Robust bulk states

Publication date: Available online 1 March 2019Source: Physics Letters AAuthor(s): C. YuceAbstractWe predict topologically robust zero energy bulk states in a disordered tight binding lattice. We explore a new kind of order and discuss that zero energy states exist in a system iff its Hamiltonian is noninvertible. We show that they are robust against any kind of disorder as long as the disordered Hamiltonian is noninvertible, too.

Source: Physics Letters A - March 5, 2019 Category: Physics Source Type: research