From the 1 of 10 linked papers with an AI index.
10 papers
Unified dark sector approaches to cosmological tensions
Sergio Sevillano Muñoz, Mark Trodden
The paper analytically studies simple models where a single scalar field varies the mass of dark matter, showing how such models can simultaneously address early- and late-time cos…
Cosmological Evidence for Dark Axion-Dark Baryon Interactions from Apparent Phantom Crossing
Justin Khoury, Meng-Xiang Lin, Mark Trodden
Interactions between dark matter and dark energy can lead to an apparent phantom-crossing behavior that mimics the expansion history preferred by the latest cosmological observatio…
Radial Solutions of Multi-Field de Sitter Galileons
Alice Garoffolo, Mary Gerhardinger, Kurt Hinterbichler +1
We study static, spherically symmetric screening solutions in the -invariant multi-field de Sitter Galileon theory, with matter couplings preserving the internal…
Hidden symmetries for tidal Love numbers: Generalities and applications to analog black holes
Valerio De Luca, Brandon Khek, Justin Khoury +1
Tidal Love numbers characterize the conservative, static response of compact objects to external tidal fields. Remarkably, these quantities vanish identically for asymptotically fl…
Scattering perspective on gravitational lensing
Mariana Carrillo Gonzalez, Valerio De Luca, Alice Garoffolo +2
Gravitational waves propagating across gravitational potentials undergo lensing effects that, in the wave-optics regime, manifest as frequency-dependent amplitude and phase modulat…
Apparent and a Lower from Dark Axion and Dark Baryons Interactions
Justin Khoury, Meng-Xiang Lin, Mark Trodden
We show that a simple coupling between dark energy and dark matter can simultaneously address two distinct hints at new physics coming from cosmological observations. The first is…