Scalar-tensor cosmologies without screening
Scalar-tensor cosmologies without screening
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无需筛选的标量张量宇宙学
DOI:
10.1088/1475-7516/2021/01/045
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发表时间:
2021
影响因子:
6.4
通讯作者:
Noller J
中科院分区:
文献类型:
--
作者:
Noller J
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) ΛCDM cosmologies in the quasi-static limit.
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影响因子:
5
作者:
J. Noller;Luca Santoni;E. Trincherini;L. G. Trombetta
通讯作者:
L. G. Trombetta
DOI:
--
发表时间:
2011-04
期刊:
arXiv: Instrumentation and Methods for Astrophysics
影响因子:
--
作者:
J. Lesgourgues
通讯作者:
J. Lesgourgues
影响因子:
8.6
作者:
E. Babichev;C. Deffayet;G. Esposito
通讯作者:
G. Esposito
影响因子:
--
作者:
Tsutomu Kobayashi;Masahide Yamaguchi;J. Yokoyama
通讯作者:
Tsutomu Kobayashi;Masahide Yamaguchi;J. Yokoyama
影响因子:
6.4
作者:
E. Bellini;I. Sawicki;M. Zumalac'arregui
通讯作者:
E. Bellini;I. Sawicki;M. Zumalac'arregui