Professor Justin Khoury's research lies at the confluence of cosmology, particle physics and string theory. Recently his work has centered on devising theories of long-distance modifications of gravity and studying their observational implications. His research also focuses on alternative theories of the early universe. In particular, he is one of the pioneers of Ekpyrotic Cosmology, which proposes that the seeds of structure formation are generated before the big bang. He also introduced chameleon field theories, in which the properties of light scalar fields vary according to their environment, leading to striking predictions for near-future tests of gravity both in the laboratory and in space.
Research Interests
Cosmology, High Energy Theory