General Relativity and Gravitation

, Volume 24, Issue 9, pp 973–983 | Cite as

Entropy and action bounds for charged black holes

  • O. B. Zaslavskii
Research Articles


The entropy upper bound for a charged black hole in equilibrium with thermal radiation is derived by means of a general model-independent approach. This bound in some ways improves that proposed by Bekenstein by taking into account the energy of the electrical field. The corresponding lower bound for the Euclidean action is also obtained. The particular role of black-hole physics in the context under consideration is discussed.


Radiation Entropy Black Hole Differential Geometry Thermal Radiation 
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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • O. B. Zaslavskii
    • 1
  1. 1.Department of PhysicsKharkov UniversityKharkovUkraine

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