Cosmological cutting rules for Bogoliubov initial states
The field theoretic wavefunction in cosmological spacetimes has received much attention as a fundamental object underlying the generation of primordial perturbations in our universe. Assuming an initial Bunch-Davies state, unitary time evolution implies an infinite set of cutting rules for the wavef...
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Main Author: | Diptimoy Ghosh, Enrico Pajer, Farman Ullah |
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Format: | Article |
Language: | English |
Published: |
SciPost
2025-01-01
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Series: | SciPost Physics |
Online Access: | https://scipost.org/SciPostPhys.18.1.005 |
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