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Black Hole and Cosmic Entropy for Schwarzschild–de Sitter Space–Time

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Abstract

We calculate the free energy and the entropy of a scalar field in terms of the brick-wall method in the background of the Schwarzschild–de Sitter space–time. We obtain the entropy of a black hole and the cosmic entropy at nonasymptotic flat space. When the cut-off satisfies the proper condition, the entropy of a black hole is proportional to the area of a black hole horizon, and the cosmic entropy is proportional to the cosmic horizon area.

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Authors and Affiliations

  1. Department of Physics, Yanbei Normal Institute, Datong, 037000, People's Republic of China

    Wu Yueqin, Zhang Lichun & Zhao Ren

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  1. Wu Yueqin
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  2. Zhang Lichun
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  3. Zhao Ren
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Yueqin, W., Lichun, Z. & Ren, Z. Black Hole and Cosmic Entropy for Schwarzschild–de Sitter Space–Time. International Journal of Theoretical Physics 40, 1001–1008 (2001). https://doi.org/10.1023/A:1004187124871

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  • DOI: https://doi.org/10.1023/A:1004187124871

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