Nonlocal multipartite correlations from local marginal probabilities
Nonlocal multipartite correlations from local marginal probabilities
Understanding what can be inferred about a multi-particle quantum system from only the knowledge of its subparts is a highly non-trivial task. Clearly, if the global system doesn't contain any information resource, nor do its subparts. However, is the converse also true? We show that the answer to is negative. …