It is shown that F(R)-modified gravitational theories lead to curvature oscillations in astrophysical systems with rising energy density. The frequency and the amplitude of such oscillations could be very high and would lead to noticeable production of energetic cosmic ray particles
In this paper we study the creation of super-massive real scalar particles in the framework of a f (...
Energy conditions can play an important role in defining the cosmological evolution. Specifically ac...
Adiabatic (curvature) perturbations are produced during a period of cosmological inflation that is d...
It is shown that F(R) modified gravitational theories lead to curvature oscillations in astronomical...
Gravity modifications at small curvatures which could induce observedaccelerated cos-mological expan...
The extreme physical conditions of Gamma Ray Bursts can constitute a useful observational laboratory...
AbstractThe extreme physical conditions of Gamma Ray Bursts can constitute a useful observational la...
This paper is a reply to the criticism of our work on particle production in modified gravity by Gor...
We discuss modified gravity which includes negative and positive powers of curvature and provides gr...
In order to describe inflation in general relativity, scalar fields must inevitably be used, with al...
Observed accelerated behavior of the Hubble flow, usually related to the existence of a mysterious u...
Recent observations arising from a number of sources suggest that the Universe is currently undergoi...
The late time acceleration of the universe poses a puzzle for modern cosmology. There exist several ...
The framework of effective field theory has provided valuable insights needed to understand the evol...
We study spherically symmetric solutions in f(R) theories and its compatibility with local tests of ...
In this paper we study the creation of super-massive real scalar particles in the framework of a f (...
Energy conditions can play an important role in defining the cosmological evolution. Specifically ac...
Adiabatic (curvature) perturbations are produced during a period of cosmological inflation that is d...
It is shown that F(R) modified gravitational theories lead to curvature oscillations in astronomical...
Gravity modifications at small curvatures which could induce observedaccelerated cos-mological expan...
The extreme physical conditions of Gamma Ray Bursts can constitute a useful observational laboratory...
AbstractThe extreme physical conditions of Gamma Ray Bursts can constitute a useful observational la...
This paper is a reply to the criticism of our work on particle production in modified gravity by Gor...
We discuss modified gravity which includes negative and positive powers of curvature and provides gr...
In order to describe inflation in general relativity, scalar fields must inevitably be used, with al...
Observed accelerated behavior of the Hubble flow, usually related to the existence of a mysterious u...
Recent observations arising from a number of sources suggest that the Universe is currently undergoi...
The late time acceleration of the universe poses a puzzle for modern cosmology. There exist several ...
The framework of effective field theory has provided valuable insights needed to understand the evol...
We study spherically symmetric solutions in f(R) theories and its compatibility with local tests of ...
In this paper we study the creation of super-massive real scalar particles in the framework of a f (...
Energy conditions can play an important role in defining the cosmological evolution. Specifically ac...
Adiabatic (curvature) perturbations are produced during a period of cosmological inflation that is d...
DOI
Add to ORKG