1.2k citations · 3.6k across the 28 of their papers we have counts for
12 papers · 1 filter
Probing Cosmic Expansion and Early Universe with Einstein Telescope
Angelo Ricciardone, Mairi Sakellariadou, Archisman Ghosh +52
Over the next two decades, gravitational-wave (GW) observations are expected to evolve from a discovery-driven endeavour into a precision tool for astrophysics, cosmology, and fund…
Fluctuating Dark Energy and the Luminosity Distance
C. J. G. Vedder, E. Belgacem, N. E. Chisari +1
The origin of dark energy driving the accelerated expansion of the universe is still mysterious. We explore the possibility that dark energy fluctuates, resulting in spatial correl…
Cosmology with the Laser Interferometer Space Antenna
Pierre Auclair, David Bacon, Tessa Baker +177
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravita…
Quantum origin of dark energy and the Hubble tension
Enis Belgacem, Tomislav Prokopec
Local measurements of the Hubble parameter obtained from the distance ladder at low redshift are in tension with global values inferred from cosmological standard rulers. A key rol…
Chirality of the gravitational-wave background and pulsar-timing arrays
Enis Belgacem, Marc Kamionkowski
We describe the signatures of a circularly polarized gravitational-wave background on the timing residuals obtained with pulsar-timing arrays. Most generally, the circular polariza…
Gravity in the infrared and effective nonlocal models
Enis Belgacem, Yves Dirian, Andreas Finke +2
We provide a systematic and updated discussion of a research line carried out by our group over the last few years, in which gravity is modified at cosmological distances by the in…