کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10136880 | 1645692 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cosmic scenarios in f(R) gravity: A complete evolution
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Cosmic scenarios in f(R) gravity: A complete evolution Cosmic scenarios in f(R) gravity: A complete evolution](/preview/png/10136880.png)
چکیده انگلیسی
The paper deals with f(R) gravity theory in the background of inhomogeneous FLRW-type space-time model. With proper choice of the inhomogeneous metric function it is possible to have an emergent scenario for the f(R)-cosmology. Explicit form of f(R) is obtained for power law expansion. It has been shown that the present f(R) gravity model is equivalent to some particle creation mechanism in Einstein gravity. Further a complete cosmic evolution from inflation to present late time acceleration is possible with proper continuous choices of the f(R)-functions. Finally, in the perspective of thermodynamical analysis a form of f(R) has been evaluated using the unified first law.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 397, October 2018, Pages 410-422
Journal: Annals of Physics - Volume 397, October 2018, Pages 410-422
نویسندگان
Dipanjana Das, Sourav Dutta, Subenoy Chakraborty,