Multipartite W -type state is determined by its single-particle reduced density matrices among all W -type states
Nengkun Yu · Physical Review A · 2013
It is known that the $n$-qubit $W$-type state is determined by its bipartite reduced density matrices. In this paper, we show that the multipartite $W$-type state is uniquely determined by its reduced density matrices among $W$-type states in the sense of local unitary equivalence.