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arXiv · 1811.12892

The Wave Function of the Universe and CMB Fluctuations

S. P. de Alwis
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Abstract

The Hartle-Hawking and Tunneling (Vilenkin) wave functions are treated in the Hamiltonian formalism. We find that the leading (i.e. quadratic) terms in the fluctuations around a maximally symmetric background, are indeed Gaussian (rather than inverse Gaussian), for both types of wave function, when properly interpreted. However the suppression of non-Gaussianities and hence the recovery of the Bunch-Davies state is not transparent.

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S. P. de Alwis. 2019-08-13. The Wave Function of the Universe and CMB Fluctuations. https://doi.org/10.1103/physrevd.100.043544

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