Cosmological consequences of Renyi, Sharma-Mittal holographic and new agegraphic dark energy models in generalized Rastall gravity

被引:3
作者
Sardar, Alok [1 ]
Debnath, Ujjal [1 ]
机构
[1] Indian Inst Engn Sci & Technol, Dept Math, Sibpur 711103, Howrah, India
关键词
Dark energy; scale factor; Rastall gravity; CONSTANT; FIELD; CONSTRAINTS; WORLD; AGE;
D O I
10.1142/S0217732321501807
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The main motivation of our study is to explore Renyi holographic dark energy, Sharma-Mittal holographic dark energy, Renyi new agegraphic dark energy, and Sharma-Mittal new agegraphic dark energy in the context of generalized Rastall gravity with the two-fluid system, dark energy, and dark matter. In this regard, we have considered the scale factors into two distinct categories, one of which corresponds to the future singularity, whereas the other represents initial singularity. By employing future event horizon as infrared (IR)-cutoff, different cosmological quantities like deceleration parameter, equation of state (EoS) parameter are evaluated, and their ramifications have been described graphically. Analyzing the squared speed of sound, we have seen classically stable and unstable behavior for each of the considered models. Finally, we study omega(D)-omega(D)' plane and find the thawing/freezing regions.
引用
收藏
页数:22
相关论文
共 57 条
[1]   Cosmology of general relativity without energy-momentum conservation [J].
AlRawaf, AS ;
Taha, MO .
GENERAL RELATIVITY AND GRAVITATION, 1996, 28 (08) :935-952
[2]   A resolution of the cosmological age puzzle [J].
AlRawaf, AS ;
Taha, MO .
PHYSICS LETTERS B, 1996, 366 (1-4) :69-71
[3]   Dynamical solution to the problem of a small cosmological constant and late-time cosmic acceleration [J].
Armendariz-Picon, C ;
Mukhanov, V ;
Steinhardt, PJ .
PHYSICAL REVIEW LETTERS, 2000, 85 (21) :4438-4441
[4]  
Balbi A., 2000, ASTROPHYS J 2, V545, pL1, DOI 10.1086/323608
[5]   Observational constraints on Rastall's cosmology [J].
Batista, C. E. M. ;
Fabris, Julio C. ;
Piattella, Oliver F. ;
Velasquez-Toribio, A. M. .
EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (05) :1-7
[6]   Rastall cosmology and the ΛCDM model [J].
Batista, Carlos E. M. ;
Daouda, Mahamadou H. ;
Fabris, Julio C. ;
Piattella, Oliver F. ;
Rodrigues, Davi C. .
PHYSICAL REVIEW D, 2012, 85 (08)
[7]  
Birrell N. D., 1994, QUANTUM FIELDS CURVE
[8]   MACHS PRINCIPLE AND A RELATIVISTIC THEORY OF GRAVITATION [J].
BRANS, C ;
DICKE, RH .
PHYSICAL REVIEW, 1961, 124 (03) :925-&
[9]   A dark energy model characterized by the age of the universe [J].
Cai, Rong-Gen .
PHYSICS LETTERS B, 2007, 657 (4-5) :228-231
[10]   Cosmological imprint of an energy component with general equation of state [J].
Caldwell, RR ;
Dave, R ;
Steinhardt, PJ .
PHYSICAL REVIEW LETTERS, 1998, 80 (08) :1582-1585