کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8141914 | 1523852 | 2016 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermodynamics in f(R,RαβRαβ,Ï) theory of gravity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermodynamics in f(R,RαβRαβ,Ï) theory of gravity Thermodynamics in f(R,RαβRαβ,Ï) theory of gravity](/preview/png/8141914.png)
چکیده انگلیسی
First and second laws of black hole thermodynamics are examined at the apparent horizon of FRW spacetime in f(R,RαβRαβ,Ï) gravity, where R, RαβRαβ and Ï are the Ricci invariant, Ricci tensor and the scalar field respectively. In this modified theory, Friedmann equations are formulated for any spatial curvature. These equations can be presented into the form of first law of thermodynamics for ThdSËh+ThdiSËh+WdV=dE, where diSËh is an extra entropy term because of the non-equilibrium presentation of the equations and ThdSËh+WdV=dE for the equilibrium presentation. The generalized second law of thermodynamics (GSLT) is expressed in an inclusive form where these results can be represented in GR, f(R) and f(R,Ï) gravities. Finally to check the validity of GSLT, we take some particular models and produce constraints of the parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics of the Dark Universe - Volume 14, December 2016, Pages 116-125
Journal: Physics of the Dark Universe - Volume 14, December 2016, Pages 116-125
نویسندگان
M. Zubair, Farzana Kousar, Sebastian Bahamonde,