 Investigations into entanglement and the ways in which it can be exploited to perform tasks that would not be feasible with only classical resources forms a key part of the discipline of quantum information theory (see Benatti, et al. eds. (2010), and the entries on  quantum computing  and  quantum entanglement and information).  In drawing attention to the import of entanglement and the ways in which it is different from anything in classical physics, Bell’s theorem and the experimental work derived from it provided, at least indirectly, some of the impetus to the development of quantum information theory.