General class of Bianchi cosmological models with I⟩ in creation-field cosmology

被引:5
|
作者
Chaubey, R. [1 ]
Shukla, A. K. [1 ]
Singh, Ashutosh [1 ]
Singh, T. [1 ]
机构
[1] Banaras Hindu Univ, Fac Sci, DST Ctr Interdisciplinary Math Sci, Varanasi 221005, Uttar Pradesh, India
关键词
Cosmological model; Hoyle-Narlikar theory; Cosmological constant; Creation field; PHANTOM MATTER; C-FIELD; UNIVERSE; SINGULARITY; SUPERNOVAE; INFLATION; FLATNESS; ISOTROPY; QUANTUM; HORIZON;
D O I
10.1007/s10509-014-1921-z
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The solutions of Einstein's equations with cosmological constant (I >) in the presence of a creation field have been obtained for general class of anisotropic cosmological models. We have obtained the cosmological solutions for two different scenarios of average scale factor. In first case, we have discussed three different types of physically viable cosmological solutions of average scale factor for the general class of Bianchi cosmological models by using a special law for deceleration parameter which is linear in time with a negative slope. In second case, we have discussed another three different forms of cosmological solutions by using the average scale factor in three different scenarios like Intermediate scenario, Logamediate scenario and Emergent scenario. All physical parameters are calculated and discussed in each physical viable cosmological model. We examine the nature of creation field and cosmological constant is dominated the early Universe but they do not survive for long time and finally tends to zero for large cosmic time t. We have also discussed the all energy conditions in each cases.
引用
收藏
页码:839 / 857
页数:19
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