New #Perspective published in Quantum: Charting separability and entanglement of diagonal Dicke states Dicke states are multipartite quantum states first introduced in \cite{Dicke1954} to describe the collective excitations of $N$ two-level atoms coupled to a single-mode electromagnetic field. They span a subspace of only $N+1$ dimensions, which contains all fully symmetric states under particle pe https://quantum-journal.org/views/qv-2026-08-07-87/ #OpenScience #Quantum #Research