{"title":"Renyi全息暗能量模型在f(R)重力与哈勃红外截止","authors":"Kishor S. Wankhade, Alfred Shaikh, Siraj N. Khan","doi":"10.26565/2312-4334-2023-3-06","DOIUrl":null,"url":null,"abstract":"In the present study, a homogeneous and anisotropic LRS Bianchi type-I universe model is considered with an interacting dark matter and Renyi holographic dark energy model (RHDE) in f(R) gravity. The deceleration parameter (DP) shows a signature flipping for a universe which was decelerating in past and accelerating at present epoch. Therefore, the DP is a most physically justified parameter to analyze the solution of cosmological model. In order to find an exact solution of the field equations of the model, the shear scalar is considered to be proportional to the expansion scalar. We have considered f(R) = b Rn, the depiction model of f(R) which is the function of Ricci scalar R. The physical and geometrical characteristics of the universe model have been studied.","PeriodicalId":42569,"journal":{"name":"East European Journal of Physics","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Renyi Holographic Dark Energy Model in f(R) Gravity with Hubble's IR Cut-Off\",\"authors\":\"Kishor S. Wankhade, Alfred Shaikh, Siraj N. Khan\",\"doi\":\"10.26565/2312-4334-2023-3-06\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In the present study, a homogeneous and anisotropic LRS Bianchi type-I universe model is considered with an interacting dark matter and Renyi holographic dark energy model (RHDE) in f(R) gravity. The deceleration parameter (DP) shows a signature flipping for a universe which was decelerating in past and accelerating at present epoch. Therefore, the DP is a most physically justified parameter to analyze the solution of cosmological model. In order to find an exact solution of the field equations of the model, the shear scalar is considered to be proportional to the expansion scalar. We have considered f(R) = b Rn, the depiction model of f(R) which is the function of Ricci scalar R. The physical and geometrical characteristics of the universe model have been studied.\",\"PeriodicalId\":42569,\"journal\":{\"name\":\"East European Journal of Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2023-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"East European Journal of Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.26565/2312-4334-2023-3-06\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"East European Journal of Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.26565/2312-4334-2023-3-06","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
在本研究中,考虑了一个均匀和各向异性的LRS Bianchi i型宇宙模型,并考虑了f(R)重力下暗物质和Renyi全息暗能量模型(RHDE)的相互作用。减速参数(DP)表现出宇宙在过去是减速的,而在现在是加速的特征翻转。因此,DP是分析宇宙学模型解的最合理的物理参数。为了求出模型场方程的精确解,考虑剪切标量与膨胀标量成正比。我们考虑了f(R) = b Rn,即f(R)是Ricci标量R的函数的描述模型,研究了宇宙模型的物理和几何特征。
Renyi Holographic Dark Energy Model in f(R) Gravity with Hubble's IR Cut-Off
In the present study, a homogeneous and anisotropic LRS Bianchi type-I universe model is considered with an interacting dark matter and Renyi holographic dark energy model (RHDE) in f(R) gravity. The deceleration parameter (DP) shows a signature flipping for a universe which was decelerating in past and accelerating at present epoch. Therefore, the DP is a most physically justified parameter to analyze the solution of cosmological model. In order to find an exact solution of the field equations of the model, the shear scalar is considered to be proportional to the expansion scalar. We have considered f(R) = b Rn, the depiction model of f(R) which is the function of Ricci scalar R. The physical and geometrical characteristics of the universe model have been studied.