# Cosmological long wavelength perturbations

@article{Unruh1998CosmologicalLW, title={Cosmological long wavelength perturbations}, author={W. G. Unruh}, journal={arXiv: Astrophysics}, year={1998} }

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…

## 85 Citations

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