@Article{NunesPanSari:2018:NeObCo,
author = "Nunes, Rafael da Costa and Pan, Supriya and Saridakis, Emmanuel
N.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Presidency
University} and {National Technical University of Athens}",
title = "New observational constraints on fðTÞ gravity through
gravitational-wave astronomy",
journal = "Physical Review D",
year = "2018",
volume = "98",
number = "10",
pages = "104055",
month = "Nov.",
abstract = "We investigate the new observational constraints on f(T) gravity
that arise from the effects of primordial gravitational waves
(GWs) on the cosmic microwave background (CMB) anisotropies and
the BB spectrum. We first show that on the GWs propagation in f(T)
gravity we obtain only an amplitude modification and not a phase
one, comparing to the case of general relativity in the background
of Lambda CDM cosmology. Concerning primordial GWs we find that
the more the model departs from general relativity the larger is
the GW amplitude decay, and thus a possible future detection would
bring the viable f(T) gravity models five orders of magnitude
closer to Lambda CDM cosmology comparing to standard cosmological
constraints. Additionally, we use the CLASS code and both data
from the Planck probe, as well as forecasts from the near-future
CORE collaboration, and we show that possible nontrivial
constraints on the tensor-to-scalar ratio would offer a clear
signature of f(T) gravity. Finally, we discuss on the possibility
to use the properties of the GWs that arise from neutron stars
mergers in order to extract additional constrains on the theory.",
doi = "10.1103/PhysRevD.98.104055",
url = "http://dx.doi.org/10.1103/PhysRevD.98.104055",
issn = "1550-2368 and 1550-7998",
language = "en",
targetfile = "nunes_new.pdf",
urlaccessdate = "27 abr. 2024"
}