Entanglement and Quantum Correlations

Entanglement provides a distinctively quantum type of correlation that has no analogue in classical statistical mechanics. Despite much progress, a satisfactory understanding of the nature and properties of quantum correlations in composite quantum systems, and the extent to which different kinds of correlations may be a resource for quantum information tasks is far from being reached. We are exploring fundamental aspects of quantum correlations, including a framework for describing limitations in "sharing" and "joining" quantum states and channels, as well as for generalizing entanglement theory beyond its standard subsystem-based setting.