Abstract
We consider the effect of quantizing the homogeneous mode of a scalar field on inflation. It is shown that any semiclassical description of the scalar field is bound to lead to density inhomogeneities which are unacceptably large.
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Padmanabhan, T. Quantum mechanics in the de sitter spacetime and inflationary scenario. J Astrophys Astron 6, 239–246 (1985). https://doi.org/10.1007/BF02715009
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DOI: https://doi.org/10.1007/BF02715009