activity
20092022
most citedStrong constraints on cosmological gravity from GW170817 and GRB 170817A

829 citations · 2.8k across the 42 of their papers we have counts for

collaborators

42 papers

gr-qc2022★ 21 cited

Probing the speed of gravity with LVK, LISA, and joint observations

Ian Harry, Johannes Noller

Theories of dark energy that affect the speed of gravitational waves on cosmological scales naturally lead to a frequency-dependent transition of that speed close to t…

gr-qc2022★ 317 cited

New Horizons for Fundamental Physics with LISA

K. G. Arun, Enis Belgacem, Robert Benkel +138

The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…

hep-th2022★ 26 cited

Positivity bounds from multiple vacua and their cosmological consequences

Scott Melville, Johannes Noller

Positivity bounds - constraints on any low-energy effective field theory imposed by the fundamental axioms of unitarity, causality and locality in the UV - have recently been used…

hep-ph2021

/Higgs inflation and the hierarchy problem

Pedro G. Ferreira, Christopher T. Hill, Johannes Noller +1

We analyse Starobinsky inflation in the presence of the Brout Englert Higgs (BEH) boson with a non-minimal coupling to the Ricci scalar, . The latter induces a coupling of the m…

astro-ph.CO2021★ 7 cited

On tachyonic stability priors for dark energy

Rafaela Gsponer, Johannes Noller

A number of stability criteria exist for dark energy theories, associated with requiring the absence of ghost, gradient and tachyonic instabilities. Tachyonic instabilities are the…

astro-ph.CO2021★ 2 cited

Theoretical priors in scalar-tensor cosmologies: Shift-symmetric Horndeski models

Dina Traykova, Emilio Bellini, Pedro G. Ferreira +3

Attempts at constraining theories of late time accelerated expansion often assume broad priors for the parameters in their phenomenological description. Focusing on shift-symmetric…