English
Related papers

Related papers: Dynamics of Modified Chaplygin Gas Inflation on th…

200 papers

In this paper, we examine the possible realization of a new family of inflation called "shaft inflation" by assuming the modified Chaplygin gas model and tachyon scalar field. We also consider the special form of dissipative coefficient as…

General Relativity and Quantum Cosmology · Physics 2017-03-08 Abdul Jawad , Amara Ilyas , Shamaila Rani

In the present work, we study the consequences of considering a recently proposed polynomial inflationary potential in the context of the generalized, modified, and generalized cosmic Chaplygin gas models. In addition, we consider…

General Relativity and Quantum Cosmology · Physics 2018-01-17 Abdul Jawad , Shahid Chaudhary , Nelson Videla

In the present work warm inflationary universe model with viscous pressure on the brane in high-dissipation regime is studied. We derive a condition which is required for this model to be realizable in slow-roll approximation. We also…

General Physics · Physics 2014-10-07 M. R. Setare , V. Kamali

We consider a Chaplygin gas model with an exponential potential in framework of braneworld inflation. We apply the slow-roll approximation in the high-energy limit to derive various inflationary spectrum perturbation parameters. We show…

High Energy Physics - Theory · Physics 2014-08-12 R. Zarrouki , M. Bennai

Warm inflationary universe models in the context of generalized chaplygin gas, modified chaplygin gas, generalized cosmic chaplygin gas are being studied. The dissipative coefficient of the form $\Gamma\propto T$, weak and strong…

General Relativity and Quantum Cosmology · Physics 2016-10-27 Abdul Jawad , Sadaf Butt , Shamaila Rani

We study warm-viscous inflationary universe model on the brane, in a tachyon field theory. We obtain the general conditions which are required for this model to be realizable. In longitudinal gauge, the primoradial perturbation parameters…

High Energy Physics - Theory · Physics 2015-06-12 M. R. Setare , V. Kamali

The warm inflation scenario in view of the modified Chaplygin gas is studied. We consider the inflationary expansion is driven by a standard scalar field whose decay ratio $\Gamma$ has a generic power law dependence with the scalar field…

General Relativity and Quantum Cosmology · Physics 2017-11-22 Abdul Jawad , Shahzad Hussain , Shamaila Rani , Nelson Videla

An intermediate inflationary universe model in the context of a generalized Chaplygin gas is considered. For the matter we consider two different energy densities; a standard scalar field and a tachyon field, respectively. In general, we…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Ramon Herrera , Marco Olivares , Nelson Videla

A warm intermediate inflationary model in the context of Generalized Chaplygin Gas is investigated. We study this model in the weak and strong dissipative regimes, considering a generalized form of the dissipative coefficient…

General Relativity and Quantum Cosmology · Physics 2016-02-17 Ramón Herrera , Nelson Videla , Marco Olivares

We consider an inflationary universe model in the context of generalized cosmic Chaplygin gas by taking matter field as standard and tachyon scalar fields. We evaluate the corresponding scalar fields and scalar potentials during…

General Relativity and Quantum Cosmology · Physics 2017-08-03 M. Sharif , Rabia Saleem

Brane inflationary universe model in the context of a Chaplygin gas equation of state is studied. General conditions for this model to be realizable are discussed. In the high-energy limit and by using a chaotic potential we describe in…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Ramon Herrera

The effect of including a Gauss-Bonnet contribution in the bulk action is investigated within the context of the steep inflationary scenario. When inflation is driven by an exponential inflaton field, this Gauss-Bonnet term allows the…

Astrophysics · Physics 2009-11-07 James E. Lidsey , N. J. Nunes

Tachyon inflationary universe model on the brane in the context of warm inflation is studied. In slow-roll approximation and in longitudinal gauge, we find the primoradial perturbation spectrums for this scenario. We also present the…

General Relativity and Quantum Cosmology · Physics 2016-09-20 Vahid Kamali , Mohammad Reza Setare

A generalized equation of state corresponding to a model that includes a Chaplygin gas and a viscous term is investigated, in the context of the reconstruction program in scalar field cosmology. The corresponding inflationary model…

General Relativity and Quantum Cosmology · Physics 2016-12-19 Emilio Elizalde , Luis G. T. Silva

In this paper we study the Chaplygin gas model as a candidate for inflation in the framework of the Randall Sundrum type-II braneworld model. We consider the original and generalized Chaplygin gas model in the presence of monomial…

General Relativity and Quantum Cosmology · Physics 2018-05-01 A. Safsafi , I. Khay , F. Salamate , H. Chakir , M. Bennai

We study the warm-tachyon inflationary universe model with viscous pressure in high-dissipation regime. General conditions which are required for this model to be realizable are derived in the slow-roll approximation. We present analytic…

General Relativity and Quantum Cosmology · Physics 2015-06-22 M. R. Setare , V. Kamali

Tachyon-Brane inflationary universe model in the context of a Chaplygin gas equation of state is studied. General conditions for this model to be realizable are discussed. In the high-energy limit and by using an exponential potential we…

General Relativity and Quantum Cosmology · Physics 2009-11-18 Ramon Herrera

In the literature, many warm inflationary models are formulated. In this piece of work, a warm inflationary model in the braneworld scenario is studied, considering constant and variable dissipation coefficients. Performance of the model…

General Relativity and Quantum Cosmology · Physics 2025-12-11 Sabina Yeasmin , Atri Deshamukhya

In this paper, warm inflationary models on a brane scenario are studied. Here we consider slow-roll inflation and high-dissipation regime in a high-energy scenario. General conditions required for these models to be realizable are derived.…

Astrophysics · Physics 2008-11-26 M. Antonella Cid , Sergio del Campo , Ramon Herrera

Warm inflation model with bulk viscous pressure in the context of "intermediate inflation" where the cosmological scale factor expands as $a(t)=a_0\exp(At^f)$, is studied. The characteristics of this model in slow-roll approximation and in…

General Relativity and Quantum Cosmology · Physics 2015-06-18 M. R. Setare , V. Kamali
‹ Prev 1 2 3 10 Next ›