Realization of non-Hermitian Hopf bundle matter

Realization of non-Hermitian Hopf bundle matter

Blog Article

Abstract coq-clear 100 ubiquinol Non-trivial linking invariant encodes robust information of topological matter.It has been recently shown that the linking and winding of complex eigenenergy strings can classify one-dimensional non-Hermitian topological matter.However, in higher dimensions, bundles of linked strings can emerge such that every string is mutually linked with all the other strings.To the best of our knowledge, a non-Hermitian Hopf bundle has not been experimentally clarified.Here, we attempt to explore the non-Hermitian Hopf bundle by visualizing the global linking structure click here of spinor strings in the momentum space of a two-dimensional electric circuit.

By exploiting the flexibility of reconfigurable couplings between circuit nodes, we study the non-Hermitian topological phase transition by exploring the intricate structure of the Hopf bundle.Furthermore, we find that the higher-order skin effect in real space is accompanied by the linking of spinor strings in momentum space, revealing bulk-boundary correspondence between the two domains.