| Autor: |
Tamás S. Biró, Viktor G. Czinner, Hideo Iguchi, Péter Ván |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Physics Letters B, Vol 803, Iss , Pp - (2020) |
| Druh dokumentu: |
article |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/j.physletb.2020.135344 |
| Popis: |
We show that the Hawking–Bekenstein entropy formula is modified by a factor of 8/3 if one also considers a work term in the 1st law of thermodynamics by a pressure stemming from the Hawking radiation. We give an intuitive definition for the corresponding thermodynamical volume by the implicit definition ϵ=Mc2/V, which is the average energy density of the Hawking radiation. This volume scales as V∼M5, agreeing with other suggestions. As a result the corresponding Smarr relation describes an extensive entropy and a stable effective equation of state S(E,V)∼E3/4V1/4. These results pertain for charged and rotating Kerr-Newman black holes. Keywords: Black holes, Volume, Entropy, Thermodynamics, Heat capacity, Thermal stability |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect