I work at the intersection of quantum information and condensed matter, and my research interests span a wide range. The systems that I typically study are quantum many-body systems—consisting of many particles or degrees of freedom—and I try to understand their properties using simple models that aim to capture the interactions between different particles. For a pure theorist like me, the simplest case is just spin systems; for instance, in a one-dimensional system, you would have just a series of spins in a line. We also consider other systems, such as bosonic systems or fermionic systems, which are made up of fundamental particles. In many cases, I use ideas from quantum information theory at different levels, sometimes taking a particular concept that is useful in quantum information, like entanglement, and other times importing insights from quantum information theorists. I also use a range of different methodologies, sometimes relying on very rigorous proofs, and other times use heuristic arguments or numerical methods.