The normal-form (In)dependence of the adiabatic particle definitions
- Cite this article as:
- Dray, T. & Renn, J. Gen Relat Gravit (1984) 16: 325. doi:10.1007/BF00762190
The adiabatic particle definition of Parker  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.