He has worked broadly in both cosmology and particle physics, in work ranging from the structure of inflationary spacetimes to the BPS structure of intersecting branes in supersymmetric theories. His work within these areas has been broad, spanning approaches to dark energy and dark matter extra dimensional models of particle physics and cosmology the baryon asymmetry of the universe inflation and its problems and alternatives topological defects in cosmology and the BPS structure of intersecting branes in supersymmetric theories. He is also interested in the role that cosmological data can play in constraining models of particle physics beyond the standard model. Professor Trodden is actively engaged in the construction and investigation of models that may shed light on the fundamental physics origin of some or all of these currently unsolved problems. Langberg Professor of Physics and Co-Director, 2009-present).

(Editor, 2009), Journal of Cosmology and Astroparticle Physics (Editor, 2010), Center for Particle Cosmology, University of Pennsylvania (Fay R. He is also heavily involved in participating in journals and working groups including: Working Group on Cosmological Connections, American Linear Collider Physics Group (Co-Chair, 2003-2006), The Gravitational Lens (Editorial Board member, 2005-2007), New Journal of Physics (Editor, 2006), Springer (Editorial Advisory Board member, Multiversal Journeys Series, 2007), Physics Letters B. Professor Trodden's work history includes: research associate, visiting assistant professor at Case Western Reserve University (1999-2000), Professor of physics at Syracuse University (2000-2009).

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