The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.
Improved calculation of the primordial gravitational wave spectrum in the standard model
Open accessAbstract
We show that the energy density spectrum of the primordial gravitational waves has characteristic features due to the successive changes in the relativistic degrees of freedom during the radiation era. These changes make the evolution of radiation energy density deviate from the conventional adiabatic evolution, ${\ensuremath{\rho}}_{r}\ensuremath{\propto}{a}^{\ensuremath{-}4}$, and thus cause the expansion rate of the universe to change suddenly at each transition which, in turn, modifies the spectrum of primordial gravitational waves. We take into account all the particles in the standard model of elementary particles. In addition, free-streaming of neutrinos damps the amplitude of gravitational waves, leaving characteristic features in the energy density spectrum. Our calculations are solely based on the standard model of cosmology and particle physics, and therefore these features must exist. Our calculations significantly improve the previous ones which ignored these effects and predicted a smooth, featureless spectrum.
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Spergel, D. N., Verde, L., Peiris, H. V., Komatsu, E., Nolta, M. R., Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377226 · Cited by 10,976
Self-citationInflationary universe: A possible solution to the horizon and flatness problems
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Quantum Fields in Curved Space
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Cosmological Perturbation Theory
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Ekpyrotic universe: Colliding branes and the origin of the hot big bang
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Cited by
FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION
Komatsu, E., Dunkley, J., Nolta, M. R., Bennett, C. L., Gold, B., Hinshaw, G., Jarosik, N., Larson, D., Limon, M., Page, L., et al. (2009) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/180/2/330 · Cited by 5,786
Self-citationCosmological backgrounds of gravitational waves
Caprini, C., & Figueroa, D. G. (2018) · Classical and Quantum Gravity · doi:10.1088/1361-6382/aac608 · Cited by 931
The Japanese space gravitational wave antenna: DECIGO
Kawamura, S., Ando, M., Seto, N., Sato, S., Nakamura, T., Tsubono, K., Kanda, N., Tanaka, T., Yokoyama, J., Funaki, I., et al. (2011) · Classical and Quantum Gravity · doi:10.1088/0264-9381/28/9/094011 · Cited by 802
Gravitational wave spectrum induced by primordial scalar perturbations
Baumann, D., Steinhardt, P., Takahashi, K., & Ichiki, K. (2007) · Physical Review D · doi:10.1103/physrevd.76.084019 · Cited by 731
Gravitational Waves Induced by Non-Gaussian Scalar Perturbations
Cai, R.-G., Pi, S., & Sasaki, M. (2019) · Physical Review Letters · doi:10.1103/physrevlett.122.201101 · Cited by 435
Metadata
- Authors
- Watanabe, Y., & Komatsu, E.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2006-06-12
- Volume
- 73
- Issue
- 12
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W1992950749
- Cited by
- 291
- References
- 39
- FWCI
- 5.98
- Type
- journal article
- Language
- en
- Open access
- green
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