In the Tew group we develop theoretical methods for understanding chemistry through computer simulation. Our focus is on gaining a deeper understanding of the nature of quantum many-body correlation and on translating that understanding into better numerical methods for solving the equations of quantum mechanics that govern chemical phenomena. We are working on algorithms that exploit the power of quantum computers for chemical simulation and are particularly interested in developing methods that are highly accurate and therefore quantitatively predictive, but at the same time scalable to large, complex systems, so that we can use computer simulation to help solve real-world chemical problems.