dark energy 1modified gravity 1momentum exchange 1phantom crossing 1scalar field 1structure growth 1
From the 1 of 2 linked papers with an AI index.
2 papers
astro-ph.CO2026
Phantom-divide crossing and suppressed structure growth in kinetically braided dark energy with momentum exchange
Masroor C. Pookkillath, Shinji Tsujikawa
The paper presents a stable scalar‑field model that allows the dark‑energy equation of state to cross from phantom (w < ‑1) to non‑phantom values while reducing the growth of cold…
astro-ph.CO2026
Effective field theory of coupled dark energy and dark matter
Katsuki Aoki, Jose Beltrán Jiménez, Masroor C. Pookkillath +1
We formulate an effective field theory (EFT) of coupled dark energy (DE) and dark matter (DM) interacting through energy and momentum transfers. In the DE sector, we exploit the EF…