Five-dimensional strange quark matter cosmological model with string cloud

被引:2
|
作者
Sobhanbabu, Y. [1 ]
Santhi, M. Vijaya [2 ]
机构
[1] SRKR Engn Coll, Bhimavaram 534204, Andhra Pradesh, India
[2] Andhra Univ, Dept Appl Math, Visakhapatnam 530003, India
关键词
Kaluza-Klein space-time; cosmic strings; strange quark matter; f(R) gravity; cosmology; GRAVITY; UNIVERSE;
D O I
10.1142/S0219887823501086
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The work in this paper is devoted to the study of Kaluza-Klein (KK) cosmological model with strange quark matter attached to string cloud in the framework of metric version of f(R) gravity. By utilizing hybrid expansion law for average scale factor of the model i.e. a(t) = e(alpha t)t(beta), here alpha and beta are positive constants, we derive the solution of the field equations of KK model in the f(R) gravity. Various dynamical parameters of the model are obtained and their behavior is analyzed through graphical representation. We observe that the analysis of deceleration parameter exhibits a smooth transition of the universe from early decelerated phase to current accelerated epoch. Also, we discussed well-known state-finder parameters {r,s} and {r,q} planes which are analyzed by graphical representation.
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页数:14
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