Cosmological reconstruction and Om diagnostic analysis of Einstein-Aether theory

被引：12

作者：

Pasqua, Antonio ^{[1
]}

Chattopadhyay, Surajit ^{[2
]}

Momeni, Davood ^{[3
,4
]}

Raza, Muhammad ^{[5
,6
]}

Myrzakulov, Ratbay ^{[3
,4
]}

Faizal, Mir ^{[7
,8
]}

机构：

[1] Univ Trieste, Dept Phys, Via Valerio 2, I-34127 Trieste, Italy

[2] Pailan Coll Management & Technol, Bengal Pailan Pk, Kolkata 700104, India

[3] Eurasian Natl Univ, Eurasian Int Ctr Theoret Phys, Astana 010008, Kazakhstan

[4] Eurasian Natl Univ, Dept Gen & Theoret Phys, Astana 010008, Kazakhstan

[5] COMSATS Inst Informat Technol, Dept Math, Sahiwal 57000, Pakistan

[6] Zhejiang Univ, Dept Opt Engn, State Key Lab Modern Opt Instrumentat, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China

[7] Univ British Columbia Okanagan, Irving K Barber Sch Arts & Sci, Kelowna, BC V1V 1V7, Canada

[8] Univ Lethbridge, Dept Phys & Astron, Lethbridge, AB T1K 3M4, Canada

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 04期

关键词：

modified gravity; quantum gravity phenomenology; supernova type Ia - standard candles; PROBE WMAP OBSERVATIONS; EMERGENT UNIVERSE; INFRARED CUTOFF; ACCELERATION; STATEFINDER; GRAVITY; MODELS; CONSTRAINTS; SYMMETRY; SPECTRUM;

D O I：

10.1088/1475-7516/2017/04/015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we analyze the cosmological models in Einstein-Aether gravity, which is a modified theory of gravity in which a time-like vector field breaks the Lorentz symmetry. We use this formalism to analyse different cosmological models with different behavior of the scale factor. In this analysis, we use a certain functional dependence of the Dark Energy (DE) on the Hubble parameter H. It will be demonstrated that the Aether vector field has a non-trivial effect on these cosmological models. We also perform the Om diagnostic in Einstein-Aether gravity and we fit the parameters of the cosmological models using recent observational data.

引用

页数：27

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