General Relativity and Gravitation

, Volume 16, Issue 5, pp 453–458 | Cite as

Space-times with a stable adiabatic vacuum

  • Tevian Dray
  • Jürgen Renn
Research Articles


The adiabatic particle definition of Parker [1] has found widespread acceptance (see, e.g., [2]) in the semiclassical approach to quantum gravity. We give sufficient conditions on a space-time so that, using the adiabatic particle definition, exactly zero particles are created; for these space-times the adiabatic vacuum is stable. The difficulties in formulating necessary conditions are discussed.


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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • Tevian Dray
    • 1
  • Jürgen Renn
    • 1
  1. 1.Freie Universität Berlin, FB Physik, WE 4ABerlin 33Federal Republic of Germany

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