Volume dependent extension of Kerr-Newman black hole thermodynamics

被引：6

作者：

Biro, Tamas S. ^{[1
]}

Czinner, Viktor G. ^{[1
]}

Iguchi, Hideo ^{[2
]}

Van, Peter ^{[1
,3
]}

机构：

[1] Wigner Res Ctr Phys, POB 49, H-1525 Budapest, Hungary

[2] Nihon Univ, Coll Sci & Technol, Lab Phys, 274-8501 Narashinodai, Funabashi, Chiba, Japan

[3] BME Fac Mech Engn, Dept Energy Engn, Bertalan Lajos U 4-6, H-1111 Budapest, Hungary

来源：

PHYSICS LETTERS B | 2020年 / 803卷

关键词：

Black holes; Volume; Entropy; Thermodynamics; Heat capacity; Thermal stability; INTERIOR; ENTROPY;

D O I：

10.1016/j.physletb.2020.135344

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 epsilon = Mc(2)/V, which is the average energy density of the Hawking radiation. This volume scales as V similar to M-5, 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) similar to (EV1/4)-V-3/4. These results pertain for charged and rotating Kerr-Newman black holes. (C) 2020 The Authors. Published by Elsevier B.V.

引用

页数：6

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