Y. Yamada

activity

20112026

most citedComponent action of nilpotent multiplet coupled to matter in 4 dimensional

N = 1

supergravity

78 citations · 838 across the 56 of their papers we have counts for

collaborators

Showing 2026Show all

3 papers · 1 filter

astro-ph.CO2026

Waterfall-modulated $α$ -attractors

Renata Kallosh, Andrei Linde, Yusuke Yamada

Hybrid $α$ -attractor models \cite{Kallosh:2022ggf} can have significantly greater values of $n_{s}$ and smaller $r$ , while preserving the relation $r ≅ 3 α (1 - n_{s})^{2}$ , which is va…

astro-ph.CO2026

Quintessential α-attractors, updated

Renata Kallosh, Andrei Linde, Marina Shmakova +1

Quintessential $α$ -attractor models of single-field inflation and evolving dark energy were constructed about a decade ago. Recently, it was pointed out that some of them might be…

astro-ph.CO2026

Inflation, Open Universes, and Dark Energy

Anton Chudaykin, Mikhail M. Ivanov, Renata Kallosh +3

We study the impact of spatial curvature ( $Ω_{k}$ ) and dynamical dark energy (parametrized by $w_{0}$ and $w_{a}$ ) on the spectral index $n_{s}$ using a combination of cosmic microwave bac…

Waterfall-modulated α-attractors

Quintessential α-attractors, updated

Inflation, Open Universes, and Dark Energy

Waterfall-modulated $α$ -attractors