2 papers
gr-qc2024
A speed limit on tachyon fields from cosmological and fine-structure data
J. D. F. Dias, Nils Schöneberg, Léo Vacher +2
The rolling tachyon is a non-canonical scalar field model well motivated in string theory which naturally predicts variations of the fine-structure constant. Such variations can in…
astro-ph.CO2024
Euclid. I. Overview of the Euclid mission
Euclid Collaboration, Y. Mellier, Abdurro'uf +1134
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Eucl…