I am a Postdoctoral Fellow in the High-energy theory group of Harvard University in Cambridge, MA. My research focuses on dark matter and cosmology, with an emphasis on their relation with particle physics. My main research interests are listed to the right. Click on the Research section for more details. Before coming to Harvard, I was a W.M. Keck Institute for Space Studies Postdoctoral Fellow at the Jet Propulsion Laboratory and at the California Institute of Technology .

Dark Matter

Dark Matter forms about 85% of all the matter in the Universe, but we still do not know what it is made of. Does it interact at all with the matter that you and I are made of? Does it interact with itself? How do its properties affect the way galaxies form? These are the kind of questions that my research is answering.

Neutrino Physics

Neutrinos are arguably the less constrained particles in the Standard Model of Particle Physics. Since they interact very weakly with ordinary matter, it is difficult to study their properties. However, right after the Big-Bang the Universe was dense and hot, allowing the neutrino to strongly interact with their surrounding. By studying this epoch through cosmic microwave background data, we can probe their interactions and compare them with what we expect from the Standard Model.


Measurements of the cosmic microwave background (pictured above) has provided us with a pristine picture of the Universe as it stood 380,000 years after the Big-Bang. A wealth of information can be extracted from such a map of the Universe. For instance, the cosmic microwave background provides us with the most compelling evidence for the existence of dark matter. Part of my work involves looking for signatures of new physics in these data.