The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Effective field theory approach to quasi-single field inflation and effects of heavy fields
Open accessAbstract
A bstractWe apply the effective field theory approach to quasi-single field inflation, which contains an additional scalar field with Hubble scale mass other than inflaton. Based on the time-dependent spatial diffeomorphism, which is not broken by the time-dependent background evolution, the most generic action of quasi-single field inflation is constructed up to third order fluctuations. Using the obtained action, the effects of the additional massive scalar field on the primordial curvature perturbations are discussed. In particular, we calculate the power spectrum and discuss the momentum-dependence of three point functions in the squeezed limit for general settings of quasi-single field inflation. Our framework can be also applied to inflation models with heavy particles. We make a qualitative discussion on the effects of heavy particles during inflation and that of sudden turning trajectory in our framework.
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Cites
A new type of isotropic cosmological models without singularity
Starobinsky, A. A. (1980) · Physics Letters B · doi:10.1016/0370-2693(80)90670-x · Cited by 7,677
First-order phase transition of a vacuum and the expansion of the Universe
Sato, K. (1981) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/195.3.467 · Cited by 1,792 · cited 1×
“Inflation gives the most natural solution to the horizon and the flatness problems of the bigbang theory as well as generates the primordial perturbations [1, 2], whose properties well coincide with the recent observations of cosmic microwave background anisotropies like the Wilkinson Microwave Anisotropy Probe [3].”
BackgroundGeneralized G-Inflation: --Inflation with the Most General Second-Order Field Equations--
Kobayashi, T., Yamaguchi, M., & Yokoyama, J. (2011) · Progress of Theoretical Physics · doi:10.1143/ptp.126.511 · Cited by 1,248 · cited 2×
“Recently, the most general single field inflation model with the second order equations of motion [4] has been invented in the context of Horndeski [5, 6] and Galileon theories [7–9].”
BackgroundMethodSelf-citationFalse vacuum inflation with Einstein gravity
Copeland, E. J., Liddle, A. R., Lyth, D. H., Stewart, E. D., & Wands, D. (1994) · Physical Review D · doi:10.1103/physrevd.49.6410 · Cited by 1,077
Inflation Driven by the Galileon Field
Kobayashi, T., Yamaguchi, M., & Yokoyama, J. (2010) · Physical Review Letters · doi:10.1103/physrevlett.105.231302 · Cited by 502
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Cited by
Desjacques, V., Jeong, D., & Schmidt, F. (2018) · Physics Reports · doi:10.1016/j.physrep.2017.12.002 · Cited by 817
Metadata
- Authors
- Noumi, T., Yamaguchi, M., & Yokoyama, D.
- Venue
- Journal of High Energy Physics
- Published
- 2013-06
- Volume
- 2013
- Issue
- 6
- ISSN
- 1029-8479 (ISSN-L)
- OpenAlex
- W2055834310
- Cited by
- 237
- References
- 5
- FWCI
- 6.20
- Type
- journal article
- Language
- en
- Open access
- green
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- Noumi, T., Yamaguchi, M., & Yokoyama, D. (2013). Effective field theory approach to quasi-single field inflation and effects of heavy fields. Journal of High Energy Physics. https://doi.org/10.1007/jhep06(2013)051
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