Can we bypass no-go theorem for Ricci-inverse gravity?

نویسندگان

چکیده

Recently, Amendola et al. proposed a geometrical theory of gravity containing higher-order derivative terms. The authors introduced anticurvature scalar $(A)$, which is the trace inverse Ricci tensor ($A^{\mu\nu} = R_{\mu\nu}^{-1}$). In this work, we consider two classes Ricci-inverse -- Class I and II models. models are form $f(R, A)$ where $f$ function scalars. ${\cal F}(R, A^{\mu\nu}A_{\mu\nu})$ F}$ square tensor. For both these models, numerically solve modified Friedmann equations in redshift range $1500 < z 0$. We show that late-time evolution Universe, i.e., from matter-dominated epoch to accelerated expansion epoch, \emph{can not} be explained by Using reduced action approach, not bypass} no-go theorem for Finally, discuss implications our analysis early-Universe cosmology.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Can Seiberg-Witten Map Bypass Noncommutative Gauge Theory No-Go Theorem?

There are strong restrictions on the possible representations and in general on the matter content of gauge theories formulated on noncommutative Moyal spaces, termed as noncommutative gauge theory no-go theorem. According to the no-go theorem [1], matter fields in the noncommutative U(1) gauge theory can only have ±1 or zero charges and for a generic noncommutative ∏n i=1 U(Ni) gauge theory ma...

متن کامل

Quantum fluctuation theorem: Can we go from micro to meso?

Quantum extensions of the Gallavotti-Cohen fluctuation theorem (FT) for the entropy production have been discussed by several authors. There is a practical gap between microscopic forms of FT and mesoscopic (i.e. not purely Hamiltonian) forms for open systems. In a microscopic setup, it is easy to state and to prove FT. In a mesoscopic setup, it is difficult to identify fluctuations of the entr...

متن کامل

Comment on “No-go theorem for bimetric gravity with positive and negative mass”

Authors Hohmann and Wohlfarth have put forward a no-go theorem for bimetric gravity with positive and negative mass in arXiv:0908.3384v1 [gr-qc]. This comment shows that their no-go theorem does not apply to arXiv:0807.2838v1 [gr-qc]. In a recent paper [1] authors Hohmann and Wohlfarth present a no-go theorem for bimetric gravity with positive and negative mass. Based on five assumptions they p...

متن کامل

A no-go theorem for polytropic spheres in Palatini f(R) gravity

Non-vacuum static spherically-symmetric solutions in Palatini f(R) gravity are examined. It is shown that for generic choices of f(R), there are commonly-used equations of state for which no satisfactory physical solution of the field equations can be found within this framework, apart from in the special case of General Relativity, casting doubt on whether Palatini f(R) gravity can be consider...

متن کامل

In ation and Supergravity No-Go Theorem

We introduce the motivation for in ation as an additional phase of the early universe and then discuss some of the ways in which its theoretical grounding is being approached from the point of view of stringy cosmology, and, speci cally, its low-energy regime supergravity. F-term and D-term models are discussed and some limits on the admissible potentials are derived. A supergravity no-go theor...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: European Physical Journal Plus

سال: 2022

ISSN: ['2190-5444']

DOI: https://doi.org/10.1140/epjp/s13360-022-03472-2