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Two-loop scalar self-mass during inflation
Open accessAbstract
We work in the locally de Sitter background of an inflating universe and consider a massless, minimally coupled scalar with a quartic self-interaction. We use dimensional regularization to compute the fully renormalized scalar self-mass-squared at one- and two-loop order for a state which is released in Bunch–Davies vacuum at t = 0. Although the field strength and coupling constant renormalizations are identical to those of flat space, the geometry induces a non-zero mass renormalization. The finite part also shows a sort of growing mass that competes with the classical force in eventually turning off this system's super-acceleration.
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Cites
Equilibrium state of a self-interacting scalar field in the de Sitter background
Starobinsky, A. A., & Yokoyama, J. (1994) · Physical Review D · doi:10.1103/physrevd.50.6357 · Cited by 809
The phantom menaced: Constraints on low-energy effective ghosts
Cline, J. M., Jeon, S., & Moore, G. D. (2004) · Physical Review D · doi:10.1103/physrevd.70.043543 · Cited by 677
Nonlocal action for long-distance modifications of gravity theory
Barvinsky, A. O. (2003) · Physics Letters B · doi:10.1016/j.physletb.2003.08.055 · Cited by 175
MODIFIED GRAVITATIONAL THEORIES AND COSMIC ACCELERATION
EASSON, D. A. (2004) · International Journal of Modern Physics A · doi:10.1142/s0217751x04022578 · Cited by 124
Cited by
Quantum contributions to cosmological correlations
Weinberg, S. (2005) · Physical Review D · doi:10.1103/physrevd.72.043514 · Cited by 932
Quintom cosmology: Theoretical implications and observations
Cai, Y.-F., Saridakis, E. N., Setare, M. R., & Xia, J.-Q. (2010) · Physics Reports · doi:10.1016/j.physrep.2010.04.001 · Cited by 868
Quantum contributions to cosmological correlations. II. Can these corrections become large?
Weinberg, S. (2006) · Physical Review D · doi:10.1103/physrevd.74.023508 · Cited by 276
Metadata
- Authors
- Brunier, T., Onemli, V. K., & Woodard, R. P.
- Venue
- Classical and Quantum Gravity
- Publisher
- IOP Publishing
- Published
- 2004-12-04
- Volume
- 22
- Issue
- 1
- Pages
- 59-84
- ISSN
- 0264-9381 (ISSN-L)
- 1361-6382
- OpenAlex
- W2037572621
- Cited by
- 189
- References
- 4
- FWCI
- 10.24
- Type
- journal article
- Language
- en
- Open access
- green
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- Brunier, T., Onemli, V. K., & Woodard, R. P. (2005). Two-loop scalar self-mass during inflation. Classical and Quantum Gravity. https://doi.org/10.1088/0264-9381/22/1/005
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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