1.1k citations · 11.1k across the 157 of their papers we have counts for
158 papers
The emergent Big Bang scenario
Justin C. Feng, Shinji Mukohyama, Jean-Philippe Uzan
This paper proposes a new avenue for understanding the cosmological singularity. The standard cosmological model contains a generic initial singularity usually referred to as the {…
Scalar-tensor theories at different scales: averaging the scalar sector
Jean-Philippe Uzan, Hugo Lévy
This article investigates the averaging of a scalar degree of freedom that couples universally to matter. It quantifies the approximation of smoothing the matter distribution befor…
Testing screened scalar-tensor theories of gravity with atomic clocks
Hugo Lévy, Jean-Philippe Uzan
In any scalar-tensor theory of gravity exhibiting a screening mechanism, the fifth force mediated by the scalar field is dynamically suppressed at sub-Solar system scales, allowing…
Fundamental constants: from measurement to the universe, a window on gravitation and cosmology
Jean-Philippe Uzan
Fundamental constants are a cornerstone of the physical laws. Any constant varying in space and/or time would signal a violation of local position invariance and be associated with…
Displacement versus velocity memory effects from a gravitational plane wave
Jibril Ben Achour, Jean-Philippe Uzan
This article demonstrates that additionally to the well-known velocity memory effect, a vacuum gravitational plane wave can also induce a displacement memory on a couple of test pa…
Wave optics lensing of gravitational waves: theory and phenomenology of triple systems in the LISA band
Martin Pijnenburg, Giulia Cusin, Cyril Pitrou +1
We study lensing of gravitational waves by a black hole in the deep wave optics regime, i.e. when the wavelength is much larger than the black hole Schwarzschild radius. We apply i…