Einstein-Podolsky-Rosen Steering in Quantum Theory and Beyond

The discovery of postquantum nonlocality, i.e. the existence of nonlocal correlations stronger than any quantum correlations but nevertheless consistent with the no-signaling principle, has deepened our understanding of the foundations quantum theory. In this talk I discuss how the phenomenon of Einstein-Podolsky-Rosen steering, a different form of quantum nonlocality, can also be conceived beyond quantum theory. I will present analytical examples of quantum and post-quantum steering, and different frameworks to understand them.