Quantum cosmic no-hair theorem and inflation
Journal Article
·
· Physical Review. D.
- Univ. of California, Davis, CA (United States)
We consider implications of the quantum extension of the inflationary no-hair theorem. We show that when the quantum state of inflation is picked to ensure the validity of the effective field theory of fluctuations, it takes only O(10) e-folds of inflation to erase the effects of the initial distortions on the inflationary observables. Thus, the Bunch-Davies vacuum is a very strong quantum attractor during inflation. We also consider bouncing universes, where the initial conditions seem to linger much longer and the quantum “balding” by evolution appears to be less efficient.
- Research Organization:
- Univ. of California, Davis, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); USDOE
- Grant/Contract Number:
- SC0009999; SC0019081
- OSTI ID:
- 1512331
- Alternate ID(s):
- OSTI ID: 1611319; OSTI ID: 1961847
- Journal Information:
- Physical Review. D., Vol. 99, Issue 10; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
de Sitter space as a Glauber-Sudarshan state
|
journal | February 2021 |
Cosmological Trans-Planckian Conjectures are not Effective | text | January 2020 |
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