Entropy of causal horizons

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We analyze spacetimes with horizons and study the thermodynamic aspects of causal horizons, suggesting that the resemblance between gravitational and thermodynamic systems has a deeper quantum mechanical origin. We find that the observer dependence of such horizons is a direct consequence of associating a temperature and entropy to a spacetime. The geometrical picture of a horizon acting as a one-way membrane for information flow can be accepted as a natural interpretation of assigning a quantum field theory to a spacetime with boundary, ultimately leading to a close connection with thermodynamics.
Original languageEnglish
Pages (from-to)2290-2300
Number of pages11
JournalJournal of Applied Mathematics and Physics
Issue number12
Publication statusPublished - Dec 2016

Bibliographical note

Copyright © 2016 by author and Scientific Research Publishing Inc. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


  • Black Hole Entropy
  • Causal Horizon
  • Black Hole Horizon
  • Black Hole Thermodynamics
  • Rindler Spacetime
  • Rindler Horizon
  • Quantum Gravity
  • Thermodynamics of Spacetime


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