no code implementations • 29 Oct 2020 • Yashar Akrami, Santiago Casas, Senwen Deng, Valeri Vardanyan
Single-field models of $\alpha$-attractor quintessential inflation provide a unified picture of the two periods of early- and late-time cosmic acceleration, where both inflation and dark energy are described by a single scalar degree of freedom rolling down a runaway potential.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory
1 code implementation • 11 Nov 2019 • Benjamin Bose, Hans A. Winther, Alkistis Pourtsidou, Santiago Casas, Lucas Lombriser, Qianli Xia, Matteo Cataneo
We test this approach against comoving Lagrangian acceleration simulation measurements performed in GR, DGP and $f(R)$ gravity and find that our method performs comparably or better to the dark matter TNS redshift space power spectrum model for dark matter.
Cosmology and Nongalactic Astrophysics
