Reheating predictions in gravity theories with derivative coupling
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2017/02/027
Abstract: We investigate the inflationary predictions of a simple Horndeski theory where the inflaton scalar field has a non-minimal derivative coupling (NMDC) to the Einstein tensor. The NMDC is very motivated for the construction of successful… read more here.
Keywords: theories derivative; derivative coupling; gravity theories; predictions gravity ... See more keywords
Noncanonical warm inflation with nonminimal derivative coupling
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/02/013
Abstract: This study extended noncanonical warm inflation to the nonminimal derivative coupling scenario. The fundamental equations, including the evolution equations and the slow roll equations of this new framework, were derived. The enlarged damping term, which… read more here.
Keywords: warm inflation; noncanonical warm; derivative coupling; nonminimal derivative ... See more keywords
Observational constraints on inflationary models with non-minimally derivative coupling by ACT
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/08/083
Abstract: The most recent data release from the Atacama Cosmology Telescope (ACT) reveals a larger value of the scalar spectral tilt n_s, ruling out a broad class of inflationary attractors. In this paper, we consider inflationary… read more here.
Keywords: inflationary models; minimally derivative; derivative coupling; cosmology ... See more keywords
Palatini-Higgs inflation with nonminimal derivative coupling
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.063522
Abstract: The predictions of standard Higgs inflation in the framework of the metric formalism yield a tensor-to-scalar ratio $r \sim 10^{-3}$ which lies well within the expected accuracy of near-future experiments $ \sim 10^{-4}$. When the… read more here.
Keywords: palatini higgs; inflation nonminimal; derivative coupling; higgs inflation ... See more keywords
Understanding large scale CMB anomalies with the generalized nonminimal derivative coupling during inflation
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.107.103513
Abstract: We study the observational implications of a class of inflationary models wherein the inflaton is coupled to the Einstein tensor through a generalized non-minimal derivative coupling (GNMDC). In particular, we explore whether these models can… read more here.
Keywords: inflationary models; large scale; derivative coupling; understanding large ... See more keywords
Derivative coupling enables genuine entanglement harvesting in causal communication
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.110.105016
Abstract: We show that particle detectors coupled to a massless quantum field through its derivative can genuinely harvest entanglement form the field even when they are in causal contact in flat spacetime. This is particularly relevant… read more here.
Keywords: harvesting causal; genuine entanglement; coupling enables; enables genuine ... See more keywords