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Power-counting and the validity of the classical approximation during inflation
Open accessAbstract
We use the power-counting formalism of effective field theory to study the size of loop corrections in theories of slow-roll inflation, with the aim of more precisely identifying the limits of validity of the usual classical inflationary treatments. We keep our analysis as general as possible in order to systematically identify the most important corrections to the classical inflaton dynamics. Although most slow-roll models lie within the semiclassical domain, we find the consistency of the Higgs-Inflaton scenario to be more delicate due to the proximity between the Hubble scale during inflation and the upper bound allowed by unitarity on the new-physics scale associated with the breakdown of the semiclassical approximation within the effective theory. Similar remarks apply to curvature-squared inflationary models.
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Cites
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A new type of isotropic cosmological models without singularity
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Cosmological Inflation and Large-Scale Structure
Liddle, A. R., & Lyth, D. H. (2000) · doi:10.1017/cbo9781139175180 · Cited by 2,317
Cited by
Higgs mass and vacuum stability in the Standard Model at NNLO
Degrassi, G., Di Vita, S., Elias-Miró, J., Espinosa, J. R., Giudice, G. F., Isidori, G., & Strumia, A. (2012) · Journal of High Energy Physics · doi:10.1007/jhep08(2012)098 · Cited by 1,524
The landscape of QCD axion models
Di Luzio, L., Giannotti, M., Nardi, E., & Visinelli, L. (2020) · Physics Reports · doi:10.1016/j.physrep.2020.06.002 · Cited by 657
Baumann, D., & McAllister, L. (2015) · Cambridge University Press eBooks · doi:10.1017/cbo9781316105733 · Cited by 532
New Model of Inflation with Nonminimal Derivative Coupling of Standard Model Higgs Boson to Gravity
Germani, C., & Kehagias, A. (2010) · Physical Review Letters · doi:10.1103/physrevlett.105.011302 · Cited by 398
Asymptotic freedom in inflationary cosmology with a non-minimally coupled Higgs field
Barvinsky, A. O., Kamenshchik, A. Y., Kiefer, C., Starobinsky, A. A., & Steinwachs, C. (2009) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2009/12/003 · Cited by 273
Metadata
- Authors
- Burgess, C. P., Lee, H. M., & Trott, M.
- Venue
- Journal of High Energy Physics
- Published
- 2009-09-23
- Volume
- 2009
- Issue
- 09
- Pages
- 103-103
- ISSN
- 1029-8479 (ISSN-L)
- OpenAlex
- W2008705757
- Cited by
- 406
- References
- 6
- FWCI
- 13.54
- Type
- journal article
- Language
- en
- Open access
- bronze
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