My primary research focus is the quantum mechanical properties of black holes. To understand these better, I use a combination of tools from quantum information theory, quantum field theory, classical gravity, string theory, and condensed matter theory. In particular, I have developed a reformulation of the AdS/CFT correspondence as a quantum error-correcting code, which is a kind of protocol developed to facilitate building a functioning quantum computer. This has led to many new insights into that correspondence, as well as into quantum gravity more generally.

Awards and Achievements