My research interests include general relativity, relativistic astrophysics, cosmology, and quantum fields in curved spacetime. Currently, one focus of my group's research is understanding various sources of gravitational radiation, and developing analytical approximation methods to calculate the gravitational waves they emit. Gravitational waves will hopefully be detected in the next few years by LIGO (the Laser Interferometer Gravitational Wave Observatory). Another focus is exploring string-theory inspired models of the Universe with extra-dimensions and branes, and their implications for cosmology and astrophysics.

- Joloyn Bloomfield (postdoc)
- Ulisses Diego Machado (postdoc)
- David Nichols (postdoc)
- Justin Vines (Physics Graduate Student)
- Sina Bahrami (Physics Graduate Student)

- Leo Stein (former Einstein fellow), Postdoctoral researcher, Caltech
- Wolfgang Tichy, Associate Professor, Florida Atlantic University
- Steve Drasco, Assistant Professor of Physics, Grinnell College.
- Etienne Racine, postdoc at the University of Maryland.
- Marc Favata, Assistant Professor of Physics, Montclair University.
- Ali Vanderveld, Fellow at Kvali Institute for Cosmological Physics, University of Chicago.
- Tanja Hinderer, Research Associate, Joint Space-Science Institute, University of Maryland.
- Andy Lundgren, postdoc at Syracuse University.

- Saturation of neutron star r-mode instability and gravitational wave signal, Caltech, November 22, 2002.
- Gravitational waves as probes of cosmology, Carnegie Centennial Symposium, November 2002.
- Quantum Inequalities in Curved Spacetime, Theoretical Physics Seminary, Brown University, Feburary 26 2003.
- Gravitational Interactions of Compact Binaries, High Energy Astrophysics Division of the American Physical Society meeting, Mt. Tremblant, Canada, 26 March 2003.
- Gravitational Waves, presentation to the National Academy of Sciences Committee on Astronomy and Astrophysics, April 29 2003.
- The accelerating Universe and gravitation theories obtained from the Palatini variational principle, University of Maryland, 16 April 2004.
- Angular Momentum carried by gravitational waves, APS April meeting, 2 May 2004.
- Implementing Mino's prescription for computing gravitational waveforms, University of Wisconsin at Milwaukee, 15 October 2004.
- Gravitational waves from compact objects inspiralling into massive black holes , American Physical Society Meeting, Tampa, Florida, 16 April 2005.
- Post-1-Newtonian equations of motion for systems of arbitrarily structured bodies , Institut d'Astrophysique de Paris, 30 June 2005.
- Theoretical explanations for cosmic acceleration, Physics colloquium, University of Guelph, 17 October 2006.
- Theoretical explanations for the accelerating Universe, Invited Plenary Talk, JGRG16, Niigata, Japan, 27 Novemberer 2006.
- Inspirals of point particles into black holes via two-timescale expansions, Invited Talk, University of Maryland, 9 Novemberer 2007.
- Two timescale expansions of the Einstein equations, 11th Eastern Gravity Meeting, Penn State, 13 May 2008.
- Cosmological Inhomogeneities and Dark Energy, KICP colloquium, University of Chicago, 5 November 2008.
- Detection templates for extreme mass ratio inspirals: is the radiative aproximation sufficient?, American Physical Society Meeting, Denver, 3 May 2009.
- Modified Gravity: Fairy Godmother or Untamed Beast, Conference on "Tests of Gravity and Gravitational Physics", Case Western Reserve University, 20 May 2009.
- Inspirals of point particles into black holes and two-timescale expansions, Invited talk, Department of Applied Mathematics and Theoretical Physics, Cambridge University, 30 April 2010.
- Astrometric properties of a stochastic gravitational wave background, Invited talk, Conference on "Cosmology since Einstein", Institute for Advanced Study of the Hong Kong University of Science and Technology, 31 May 2011.
- Effective Field Theory and Modified Gravity, Invited talk, Conference on "Cosmological Tests of Gravity", Oxford University, 13 March 2013.
- Effective Field Theory and Modified Gravity Models in Cosmology, Invited talk, Institute for Gravitation and the Cosmos, Penn State, 20 Sept 2013.
- Gravitational Wave Memories and Asymptotic Charges in General Relativity, Invited talk, Conference "General Relativity and Gravitation: A Centennial Perspective", Penn State, 8 June 2015.

- Graduate General Relativity : Physics 6554 / Astronomy 6510 (Spring 2011)
- Quantum Field Theory in Curved Spacetime : Physics 7683 (Fall 2009)
- Introduction to General Relativity : Physics 445 / Astronomy 445 (Fall 2007)
- Analytical Mechanics : Physics 318 (Spring 2008)
- Special Relativity : Physics 216 (Spring 2004)

- Cornell astrophysics and relativity theroy
- Cornell Institute for High Energy Phenomenology
- ArXiv bulletin board Search page
- spires high energy physics database
- NASA ADS abstracts