• Corpus ID: 17476626

Cosmological long wavelength perturbations

@article{Unruh1998CosmologicalLW,
  title={Cosmological long wavelength perturbations},
  author={W. G. Unruh},
  journal={arXiv: Astrophysics},
  year={1998}
}
  • W. Unruh
  • Published 25 February 1998
  • Physics
  • arXiv: Astrophysics
This paper presents an exact solution to the long wavelength perturbations for the scalar modes and for a scalar field theory with arbitrary potential. Locally these modes are coordinate transformations of the homogeneous background solutions (although non-locally they are not). These solutions are then used to discuss a couple of recent papers in which such perturbations play a role. Abramo, Brandenberger, and Mukhanov have recently argued that long wavelength perturbations have the effect of… 

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