Speaker
Description
Despite their involved structure transformations via local operations assisted by classical communication (LOCC) are an active field of research due to their relevance to entanglement theory and their natural occurrence in communication scenarios.
However, generically no LOCC transformations are possible among multipartite pure states. Therefore, we focus in this work on entanglement classes containing permutation symmetric states, which are promising candidates for a richer LOCC structure and study their entanglement properties. We characterize the local symmetries of important classes and identify possible LOCC transformations, as well as states which can neither be reached via finite-round LOCC protocols nor converted to some other pure state within a single round of LOCC.