My research interests are in early universe cosmology, particularly inflationary physics, reheating and associated observables.Â
Ongoin work: Topological aspects of cosmological particle production. My collaborators and I have been extending the topological contribution to Bogoliubov coefficients for long-wavelength modes (2408.11452) from k=0 to small but finite k. We found that global symmetries like time-reversal symmetry and single-valuedness of analytically-continued quantum modes severely constrain the coefficients.