General Relativity and Gravitation

, Volume 16, Issue 4, pp 325–332

The normal-form (In)dependence of the adiabatic particle definitions

  • Tevian Dray
  • Jürgen Renn
Research Articles

DOI: 10.1007/BF00762190

Cite this article as:
Dray, T. & Renn, J. Gen Relat Gravit (1984) 16: 325. doi:10.1007/BF00762190


The adiabatic particle definition of Parker [1] has only been discussed for particular choices of the field variable and time coordinate, referred to here as the choice of a normal-form. It seems to have been implicitly assumed that the associated vacuum is independent of the normal-form chosen; we show that this is indeed the case.

Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • Tevian Dray
    • 1
  • Jürgen Renn
    • 1
  1. 1.FB PhysikFreie Universität BerlinBerlin 33West Germany
  2. 2.Instituut voor Theoretische FysicaUtrechtThe Netherlands