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Adiabatic CMB perturbations in pre-Big-Bang string cosmology
Open accessAbstract
Abstract We consider the pre-Big-Bang scenario with a massive axion field which starts to dominate energy density when oscillating in an instanton-induced potential and subsequently reheats the universe as it decays into photons, thus creating adiabatic CMB perturbations. We find that the fluctuations in the axion field can give rise to a nearly flat spectrum of adiabatic perturbations with a spectral tilt Δn in the range −0.1≲ Δn ≲1.
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Cites
Cosmological Inflation and Large-Scale Structure
Liddle, A. R., & Lyth, D. H. (2000) · doi:10.1017/cbo9781139175180 · Cited by 2,317
Cited by
Planck 2018 results: X. Constraints on inflation
Planck Collaboration, Akrami, Y., Arroja, F., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., et al. (2020) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201833887 · Cited by 2,442
Planck 2013 results. XXII. Constraints on inflation
Planck Collaboration, Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Banday, A. J., et al. (2014) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201321569 · Cited by 1,082
Inflation dynamics and reheating
Bassett, B. A., Tsujikawa, S., & Wands, D. (2006) · Reviews of Modern Physics · doi:10.1103/revmodphys.78.537 · Cited by 1,020
Cosmology and Fundamental Physics with the Euclid Satellite
The Euclid Theory Working Group, Amendola, L., Appleby, S., Bacon, D., Baker, T., Baldi, M., Bartolo, N., Blanchard, A., Bonvin, C., Borgani, S., et al. (2013) · Living Reviews in Relativity · doi:10.12942/lrr-2013-6 · Cited by 899
The pre-big bang scenario in string cosmology
Gasperini, M., & Veneziano, G. (2003) · Physics Reports · doi:10.1016/s0370-1573(02)00389-7 · Cited by 872
Metadata
- Authors
- Enqvist, K., & Sloth, M. S.
- Venue
- Nuclear Physics B
- Publisher
- Elsevier BV
- Published
- 2002-04
- Volume
- 626
- Issue
- 1-2
- Pages
- 395-409
- ISSN
- 0550-3213 (ISSN-L)
- OpenAlex
- W2052865260
- Cited by
- 865
- References
- 1
- FWCI
- 31.74
- Type
- journal article
- Language
- en
- Open access
- green
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- Enqvist, K., & Sloth, M. S. (2002). Adiabatic CMB perturbations in pre-Big-Bang string cosmology. Nuclear Physics B. https://doi.org/10.1016/s0550-3213(02)00043-3
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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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