Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2018 / Cilt: 18 - Sayı: 1

(1+1)-Dimensional Black Holes with Scalar Field in Unimodular f(R) Theory

Unimodüler f(R) Teoride Skaler Alanlı (1+1)-Boyutlu Karadelikler

Pages
75–82
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Obtained solutions are discussed physically and geometrically.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, (1+1)-dimensional Schwarzschild blackholes with scalar field are investigated in the context of unimodular f(R) gravity theory.
📊
Key Findings & Data:Field equation of unimodular f(R) gravity, defined for (3+1)dimensional space-times, is also obtained for (1+1)-dimensional geometries.
💡
Conclusion & Impact:Obtained solutions are discussed physically and geometrically.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, (1+1)-dimensional Schwarzschild blackholes with scalar field are investigated in the context of unimodular f(R) gravity theory. Field equation of unimodular f(R) gravity, defined for (3+1)dimensional space-times, is also obtained for (1+1)-dimensional geometries. Energy-momentum conservation law for unimodular f(R) gravity is defined by using effective energy-momentum tensor for (3+1) and (1+1)-dimensional space-times. By using the conservation law and Klein-Gordon equation, solutions of the field equations are obtained. Graphs of f(R) function and scalar field function are shown for different choosing of arbitrary constants. Obtained solutions are discussed physically and geometrically.

Özet

Bu çalışmada, unimodüler f(R) gravitasyon teorisi çerçevesinde (1+1)-boyutlu Schwarzschild karadelikleri skaler alan varlığında araştırılmıştır. Unimodüler f(R) gravitasyon teorisinin (3+1)-boyutlu uzay-zaman geometrileri için tanımlanmış olan alan denklemleri, (1+1)-boyut için elde edilmiştir. Unimodüler f(R) gravitasyon teorisine ait enerji-momentum korunum denklemi, etkin enerji-momentum tensörü kullanılarak (3+1) ve (1+1)-boyutlu uzay-zamanlar için tanımlanmıştır. Tanımlanan korunum denklemi ve Klein-Gordon denklemlerinden faydalanılarak alan denklemi çözümleri elde edilmiştir. Keyfi sabitlerin farklı seçimleri için f(R) ve skaler alan fonksiyonlarının grafikleri gösterilmiştir. Elde edilen sonuçlar fiziksel ve geometrik açıdan tartışılmıştır.

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Cite This Article

DOĞRU, M. U., AYDIN, H. (2022). (1+1)-Dimensional Black Holes with Scalar Field in Unimodular f(R) Theory. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 18 - Sayı: 1, 75–82. https://ajindex.com/articles/429950

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References (17)

  1. Achucarro, A. and Ortiz, M.E., 1993. Relating black holes in two and three dimensions. Physical Review D, 48(8), 3600-3605.
  2. Ahmed, J. and Saifullah, K., 2016. Greybody factor of scalar field from Reissner-Nordstrom-de Sitter black hole. arXiv preprint arXiv:1610.06104 [gr-qc],1-13.
  3. Alvarez, E., 2005. Can one tell Einstein’s unimodular theory from Einstein’s general relativity? Journal of High Energy Physics, 2005(03), 002, 1-14.
  4. Anderson, J.L. and Finkelstein, D., 1971. Cosmological constant and fundamental length. American Journal of Physics, 39(8), 901-904.
  5. Brown, J.D., Henneaux, M. and Teitelboim, C., 1986. Black holes in two spacetime dimensions. Physical Review D, 33(2), 319-323.
  6. Buchdahl, H. A., 1970. Non-linear lagrangians and cosmological theory. Monthly Notices of the Royal Astronomical Society, 150, 1-8.
  7. Cadoni, M. and Franzin, E., 2015. Asymptotically flat black holes sourced by a massless scalar field. Physical Review D, 91(10), 104011, 1-10.
  8. Carroll, S., 2004. Spacetime and Geometry: An Introduction to General Relativity. Addison-Wesley, San Francisco, USA, 155-156.
  9. Clifton, T., 2006. Alternative theories of gravity. PhD Dissertation, Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge, UK, 205. Detweiler, S., 1980. Klein-Gordon equation and rotating black holes. Physical Review D, 22(10), 2323-2326.
  10. Eichhorn, A., 2015. The renormalization group flow of unimodular f(R) gravity. Journal of High Energy Physics, 2015(04), 096, 1-27.
  11. Faraoni, V., 2008. f(R) gravity: successes and challenges. arXiv preprint arXiv:0810.2602 [gr-qc],1-18.
  12. Fiol, B. and Garriga, J., 2010. Semiclassical unimodular gravity. Journal of Cosmology and Astroparticle Physics, 2010(08), 015, 1-13.
  13. Lobo, F.S.N. and Oliveira, M.A., 2009. Wormhole geometries in f(R) modified theories of gravity. Physical Review D, 80(10), 104012, 1-9.
  14. Nojiri, S., Odintsov, S.D. and Oikonomou, V. K., 2016a. Unimodular F(R) gravity. Journal of Cosmology and Astroparticle Physics, 2016(05), 046, 1-24.
  15. Nojiri, S., Odintsov, S.D. and Oikonomou, V.K., 2016b. Bounce universe history from unimodular F(R) gravity. Physical Review D, 93(8), 084050, 1-14.
  16. Ortiz, L., 2012. The energy-momentum tensor in the 1+1 dimensional non-rotating BTZ black hole. General Relativity and Gravitation, 44(11), 2857-2863.
  17. Panotopoulos, G. and Rincon, A., 2017. Greybody factors for a nonminimally coupled scalar field in BTZ black hole background. Physics Letters B, 772, 523-528. Rajabi