We consider a dark energy model consisting of a scalar field simultaneously coupled to the Gauss-Bonnet invariant and dark matter such that the observational gravitational wave speed constraint on the Gauss-Bonnet term is respected. In the early era, the Gauss-Bonnet term caused the scalar field to remain at a stable point. In this period, dark energy density was negligible. Next, due to the dark matter redshift and the conformal coupling, the initial $Z_2$ symmetry was broken, and the activated field climbed up its potential and provided conditions for late-time acceleration. In this scenario, the Gauss-Bonnet term is not directly involved in the late-time evolution but alleviates the coincidence problem.Comment: 14 pages, 6 figure
We study black holes in a modified gravity scenario involving a scalar field quadratically coupled t...
In considering alternative higher-order gravity theories, one is liable to be motivated in pursuing ...
Black holes in scalar-Gauss-Bonnet gravity are prone to scalarization, that is a spontaneous develop...
Gauss-Bonnet Dark Energy has been a popular model to explain the accelerated expansion of the Univer...
We investigate a class of dark energy models in which a scalar field is coupled to the quadratic cur...
Gauss-Bonnet Dark Energy has been a popular model to explain the accelerated expansion of the Univer...
In this letter, we discuss the late-time dynamics of a modified Gauss-Bonnet gravity theory `a la Br...
The Gauss-Bonnet (GB) curvature invariant coupled to a scalar field $\phi$ can lead to an exit from ...
The Gauss-Bonnet (GB) curvature invariant coupled to a scalar field Φ can lead to an exit from ...
Higgs inflation with a Gauss-Bonnet term is studied in the Einstein frame. Our model features two co...
In this work by using a numerical analysis, we investigate in a quantitative way the late-time dynam...
In this paper, we consider a gravitational action containing a combination of the Ricci scalar, $R$,...
Cosmological consequences of string-motivated dark energy scenarios featuring a scalar field coupled...
AbstractA cosmological model has been constructed with Gauss–Bonnet-scalar interaction, where the Un...
To recreate the cosmological models, we employed the parametrization approach in modified teleparall...
We study black holes in a modified gravity scenario involving a scalar field quadratically coupled t...
In considering alternative higher-order gravity theories, one is liable to be motivated in pursuing ...
Black holes in scalar-Gauss-Bonnet gravity are prone to scalarization, that is a spontaneous develop...
Gauss-Bonnet Dark Energy has been a popular model to explain the accelerated expansion of the Univer...
We investigate a class of dark energy models in which a scalar field is coupled to the quadratic cur...
Gauss-Bonnet Dark Energy has been a popular model to explain the accelerated expansion of the Univer...
In this letter, we discuss the late-time dynamics of a modified Gauss-Bonnet gravity theory `a la Br...
The Gauss-Bonnet (GB) curvature invariant coupled to a scalar field $\phi$ can lead to an exit from ...
The Gauss-Bonnet (GB) curvature invariant coupled to a scalar field Φ can lead to an exit from ...
Higgs inflation with a Gauss-Bonnet term is studied in the Einstein frame. Our model features two co...
In this work by using a numerical analysis, we investigate in a quantitative way the late-time dynam...
In this paper, we consider a gravitational action containing a combination of the Ricci scalar, $R$,...
Cosmological consequences of string-motivated dark energy scenarios featuring a scalar field coupled...
AbstractA cosmological model has been constructed with Gauss–Bonnet-scalar interaction, where the Un...
To recreate the cosmological models, we employed the parametrization approach in modified teleparall...
We study black holes in a modified gravity scenario involving a scalar field quadratically coupled t...
In considering alternative higher-order gravity theories, one is liable to be motivated in pursuing ...
Black holes in scalar-Gauss-Bonnet gravity are prone to scalarization, that is a spontaneous develop...