A stable static universe?

  • C. Barceló
  • G. E. Volovik
Gravity, Astrophysics


Starting from the assumption that general relativity might be an emergent phenomenon showing up at low energies from an underlying microscopic structure, we reanalyze the stability of a static closed universe filled with radiation. In this scenario, it is sensible to consider the effective general-relativistic configuration as in a thermal contact with an “environment” (the role of the environment can be played, for example, by a higher-dimensional bulk or by the trans-Planckian degrees of freedom). We calculate the free energy at a fixed temperature of this radiation-filled static configuration. Then, by looking at the free energy, we show that the static Einstein configuration is stable under the stated condition.

PACS numbers

04.20.EX 04.40.Nr 04.50.+h 


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Copyright information

© MAIK "Nauka/Interperiodica" 2004

Authors and Affiliations

  • C. Barceló
    • 1
  • G. E. Volovik
    • 2
    • 3
  1. 1.Instituto de Astrofisica de AndalucíaGranadaSpain
  2. 2.Low Temperature LaboratoryHelsinki University of TechnologyFinland
  3. 3.Landau Institute for Theoretical PhysicsMoscowRussia

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