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Understanding the relation between the different forms of inseparability inquantum mechanics is a longstanding problem in the foundations of quantumtheory and has implications for quantum information processing. Here we makeprogress in this direction by establishing a direct link between quantumteleportation and Bell nonlocality. In particular, we show that all entangledstates which are useful for teleportation are nonlocal resources, i.e. lead todeterministic violation of Bell's inequality. Our result exploits thephenomenon of super-activation of quantum nonlocality, recently proved byPalazuelos, and suggests that the latter might in fact be generic.

All quantum states useful for teleportation are nonlocal resources