Schmidt number
= Schmidt number
{c}
The Schmidt number of a mixed bipartite state is the smallest $k$ for which it has a pure-state ensemble whose members all have Schmidt rank at most $k$. Schmidt number one is equivalent to separability.
= Schmidt number
{c}
The Schmidt number of a mixed bipartite state is the smallest $k$ for which it has a pure-state ensemble whose members all have Schmidt rank at most $k$. Schmidt number one is equivalent to separability.