J
Justin Khoury
Researcher at University of Pennsylvania
Publications - 104
Citations - 12605
Justin Khoury is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: De Sitter universe & Ekpyrotic universe. The author has an hindex of 45, co-authored 98 publications receiving 11511 citations. Previous affiliations of Justin Khoury include Columbia University & Princeton University.
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Ekpyrotic universe: Colliding branes and the origin of the hot big bang
TL;DR: In this article, a cosmological scenario in which the hot big bang universe is produced by the collision of a brane in the bulk space with a bounding orbifold plane, beginning from an otherwise cold, vacuous, static universe was proposed.
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Chameleon Fields: Awaiting Surprises for Tests of Gravity in Space
Justin Khoury,Amanda Weltman +1 more
TL;DR: It is predicted that near-future satellite experiments could measure an effective Newton's constant in space different from that on Earth, as well as violations of the equivalence principle stronger than currently allowed by laboratory experiments.
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Beyond the cosmological standard model
TL;DR: A review of the state of the art in the field of modified gravity can be found in this article, where the authors identify the guiding principles for rigorous and consistent modifications of the standard model, and discuss the prospects for empirical tests.
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From big crunch to big bang
TL;DR: In this paper, conditions under which a universe contracting towards a big crunch can make a transition to an expanding big bang universe are considered, and the possibility opens the door to new classes of cosmological models.
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Beyond the Cosmological Standard Model
TL;DR: A review of the current state of the field and a framework for anticipating developments in the next decade can be found in this paper, where the authors identify the guiding principles for rigorous and consistent modifications of the standard model, and discuss the prospects for empirical tests.