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Related papers: Interacting Ricci dark energy models with an effec…

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We investigate a model of interacting dark matter and dark energy given by a modified holographic Ricci cutoff in a spatially flat Friedmann-Robertson-Walker (FRW) space-time. We consider a nonlinear interaction consisting of a significant…

Cosmology and Nongalactic Astrophysics · Physics 2011-12-30 Luis P. Chimento , Martín G. Richarte

We explore the cosmological implications of the interactions among the dark particles in the dark $SU(2)_R$ model. It turns out that the relevant interaction is between dark energy and dark matter, through a decay process. With respect to…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-02 Ricardo G. Landim , Rafael J. F. Marcondes , Fabrízio F. Bernardi , Elcio Abdalla

Dark energy models inspired by the cosmological holographic principle are studied in homogeneous isotropic spacetime with a general choice for the dark energy density $\rho_d=3(\alpha H^2+\beta\dot{H})$. Special choices of the parameters…

General Relativity and Quantum Cosmology · Physics 2014-12-02 S. Som , A. Sil

In this paper, we present an analytical solution for the interacting generalized holographic dark energy model, assuming a linear interaction rate between dark energy and dark matter. We determine the equation of state parameter, the…

General Relativity and Quantum Cosmology · Physics 2024-10-15 Omar Enkhili , Farida Bargach , Dalale Mhamdi , Taoufik Ouali , Ahmed Errahmani

We perform a Bayesian model selection analysis for interacting scenarios of dark matter and modified holographic Ricci dark energy (MHRDE) with linear interacting terms. We use a combination of some of the latest cosmological data such as…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-03 Antonella Cid , Carlos Rodriguez-Benites , Mauricio Cataldo , Gonzalo Casanova

A cosmological model of dark energy interacting with dark matter and another general component of the universe is investigated. We found general constraints on these models imposing an accelerated expansion. The same is also studied in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Norman Cruz , Samuel Lepe , Francisco Pena

Cosmological models in Lyra's geometry are constructed and investigated with the assumption of a minimal interaction of matter with the displacement vector field and the dynamical $\Lambda$ - term. Exact solutions of the model equations are…

General Relativity and Quantum Cosmology · Physics 2012-10-04 V. K. Shchigolev

We investigate interacting dark energy models in the framework of fractal cosmology. We discuss a fractal FRW universe filled with the dark energy and dark matter which interact with each other. We obtain the equation for the relative…

Cosmology and Nongalactic Astrophysics · Physics 2012-05-29 O. A. Lemets , D. A. Yerokhin

The cosmological model of dark energy interacting with cold dark matter without coupling to the baryonic matter, is studied in the background of both classical Einstein and loop quantum cosmology. We consider two types of interacting…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Song Li , Yongge Ma

We examine a spatially flat Friedmann-Robertson-Walker (FRW) universe filled with interacting dark matter and a modified holographic Ricci dark energy (MHRDE). The interaction term is selected as a significant rational function of the total…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Luis P. Chimento , Martín G. Richarte

Dark energy and dark matter are only indirectly measured via their gravitational effects. It is possible that there is an exchange of energy within the dark sector, and this offers an interesting alternative approach to the coincidence…

General Relativity and Quantum Cosmology · Physics 2009-03-24 Gabriela Caldera-Cabral , Roy Maartens , L. Arturo Urena-Lopez

We investigate a universe filled with interacting dark matter, holographic dark energy, and dark radiation for the spatially flat Friedmann-Robertson-Walker (FRW) spacetime. We use a linear interaction to reconstruct all the component…

General Relativity and Quantum Cosmology · Physics 2013-04-12 Luis P. Chimento , Martín G. Richarte

Interacting dark energy models have been suggested as alternatives to the standard cosmological model, $\Lambda$CDM. We focus on a phenomenologically interesting class of dark scattering models that is characterised by pure momentum…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-08 Maria Tsedrik , Chiara Moretti , Pedro Carrilho , Federico Rizzo , Alkistis Pourtsidou

We investigate interacting ghost dark energy models in higher dimensional cosmology. We attempt to model dark matter within a barotropic fluid with $P_{b}=\omega(t)_{b}\rho$. In this work we consider four different models based on choosing…

General Relativity and Quantum Cosmology · Physics 2016-05-25 J. Sadeghi , M. Khurshudyan , H. Farahani

We have investigated the model of dark energy interacting with dark matter by choosing inhomogeneous equations of state for dark energy and a non-linear interaction term for the underlying interaction. The equation of state have…

Astrophysics · Physics 2009-06-23 Mubasher Jamil , Muneer Ahmad Rashid

A cosmological model of an holographic dark energy interacting with dark matter throughout a decaying term of the form $Q=3(\lambda_1\rho_{DE} + \lambda_2\rho_m) H$ is investigated. General constraint on the parameters of the model are…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Norman Cruz , Samuel Lepe , Francisco Pena , Joel Saavedra

We explore a cosmological model composed by a dark matter fluid interacting with a dark energy fluid. The interaction term has the non-linear lambda*(rho_m)^alpha * (rho_e)^beta form, where rho_m and rho_e are the energy densities of the…

Cosmology and Nongalactic Astrophysics · Physics 2013-06-17 Norman Cruz , Guillermo Palma , David Zambrano , Arturo Avelino

A model for a flat homogeneous and isotropic Universe composed of dark energy, dark matter, neutrinos, radiation and baryons is analyzed. The fields of dark matter and neutrinos are supposed to interact with the dark energy. The dark energy…

General Relativity and Quantum Cosmology · Physics 2008-11-26 G. M. Kremer

The paper deals with a theoretical model for interacting dark energy. The interaction between the cold dark matter (dust) and the dark energy has been assumed to be non-gravitational in nature. Exact analytic cosmological solutions are…

General Relativity and Quantum Cosmology · Physics 2015-07-31 Supriya Pan , Subhra Bhattacharya , Subenoy Chakraborty

Dark matter interacts gravitationally, but it presumably interacts weakly through other channels, especially with respect to regular luminous matter. We look at different ways in which dark matter may couple to other fields. We briefly…

General Physics · Physics 2018-09-27 Kevin J. Ludwick