My interests primarily revolve around cosmological inflation. One focus of my research is the study of inflationary scenarios with new observable signatures, such as broken statistical isotropy and/or substantial non-Gaussianity, which provide additional criteria for discriminating among different models. I am also interested in the effect of supersymmetric flat directions on the post-inflationary evolution of the universe. An ongoing project involves a nonlinear study of the preheating of flat direction condensates - the explosive decay may give rise to gravitational waves in the frequency range of upcoming observations.