کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10724810 | 1034037 | 2008 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ruppeiner geometry and 2D dilaton gravity in the thermodynamics of black holes
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ruppeiner geometry and 2D dilaton gravity in the thermodynamics of black holes Ruppeiner geometry and 2D dilaton gravity in the thermodynamics of black holes](/preview/png/10724810.png)
چکیده انگلیسی
We study the geometric approach to the black hole thermodynamics. The geometric description of the equilibrium thermodynamics comes from Ruppeiner geometry based on a metric on the thermodynamic state space. For this purpose, we consider the Reissner-Nordström-AdS (RN-AdS) black hole which provides two different ensembles: canonical ensemble for fixed-charge case and grand canonical ensemble for fixed-potential case. Two cases are independent and cannot be mixed into each other. Hence, we calculate different Ruppeiner curvatures for two ensembles. However, we could not find the consistent behaviors of Ruppeiner curvature corresponding to those of heat capacity. Alternatively, we propose the curvature scalar in the 2D dilaton gravity approach which shows the features of extremal, Davies and minimum temperature points of RN-AdS black hole, clearly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 663, Issue 4, 29 May 2008, Pages 342-350
Journal: Physics Letters B - Volume 663, Issue 4, 29 May 2008, Pages 342-350
نویسندگان
Yun Soo Myung, Yong-Wan Kim, Young-Jai Park,