Chen-Huan Wu

Entanglement and non-local magic in a non-unitarily deformed non-Hermitian bipartite system

Non-Hermitian degeneracies are usually discussed through spectral coalescence, whereas entanglement is a property of eigenvectors and need not be fixed by the eigenvalues alone. We formulate a compact bipartite model that separates these two notions. A Hermitian operator with a degenerate eigenspace is transformed by a...