Gravitational Baryogenesis of Cosmological Constant Dominated Universe

被引：1

作者：

Srivastava, Sudhir Kumar ^{[1
]}

Ali, Ahamad T. ^{[2
]}

Yadav, Anil Kumar ^{[3
]}

机构：

[1] Janata Janardan Inter Coll, Dept Math, Gandhinagar 233225, Ghazipur, India

[2] Al Azhar Univ, Fac Sci, Dept Math, Cairo 11884, Egypt

[3] United Coll Engn & Res, Dept Phys, Greater Noida 201306, India

来源：

GRAVITATION & COSMOLOGY | 2021年 / 27卷 / 04期

关键词：

ACCELERATING UNIVERSE; DARK ENERGY; LAMBDA; MODELS;

D O I：

10.1134/S0202289321040137

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study gravitational baryogenesis in an isotropic and homogeneous universe in the framework of general relativity. We investigate a new exact solution of Einstein's field equations for the FRW metric. Our solution represents a transitioning model of the universe which was expanding in a decelerated mode and passes on to an accelerated mode after dominance of the cosmological constant A. We observe that gravitational baryogenesis occurs in the derived universe, and the derived baryon-entropy ratio is in good agreement with its observational value.

引用

页码：331 / 337

页数：7

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