.png){kind=icon}
Return
Scalar-tensor cosmologies without screening
.png){kind=icon}
OA
AI
DOI：10.1088/1475-7516/2021/01/045.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Scalar-tensor theories are frequently only consistent with fifth force constraints in the presence of a screening mechanism, namely in order to suppress an otherwise unacceptably large coupling between the scalar and ordinary matter. Here we investigate precisely which subsets of Horndeski theories do not give rise to and/or require such a screening mechanism. We investigate these subsets in detail, deriving their form and discussing how they are restricted upon imposing additional bounds from the speed of gravitational waves, solar system tests and cosmological observables. Finally, we also identify what subsets of scalar-tensor theories precisely recover the predictions of standard (linearised) Lambda CDM cosmologies in the quasi-static limit.
Keywords:
dark energy theory
modified gravity
Journal
IF:
5.9
Papers:
1.3W
Citations:
4.7W
Organization
View more organizations
Cited Papers
.png){kind=icon}
ShareSaveShareSaveShareSaveMaximal freedom at minimum cost: linear large-scale structure in general modifications of gravity
OAAI
OAAIShareSaveShareSaveShareSaveShareSave View more