The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Perturbations in k-inflation
Open accessAbstract
Abstract We extend the theory of cosmological perturbations to the case when the “matter” Lagrangian is an arbitrary function of the scalar field and its first derivatives. In particular, this extension provides a unified description of known cases such as the usual scalar field and the hydrodynamical perfect fluid. In addition, it applies to the recently proposed k-inflation, which is driven by non-minimal kinetic terms in the Lagrangian. The spectrum of quantum fluctuations for slow-roll and power law k-inflation is calculated. We find, for instance, that the usual “consistency relation” between the tensor spectral index and the relative amplitude of scalar and tensor perturbations is modified. Thus, at least in principle, k-inflation is phenomenologically distinguishable from standard inflation.
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Citations
Cites
Armendáriz-Picón, C., Damour, T., & Mukhanov, V. (1999) · Physics Letters B · doi:10.1016/s0370-2693(99)00603-6 · Cited by 1,846
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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
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
Dynamical Solution to the Problem of a Small Cosmological Constant and Late-Time Cosmic Acceleration
Armendariz-Picon, C., Mukhanov, V., & Steinhardt, P. J. (2000) · Physical Review Letters · doi:10.1103/physrevlett.85.4438 · Cited by 1,974
Self-citationArmendáriz-Picón, C., Damour, T., & Mukhanov, V. (1999) · Physics Letters B · doi:10.1016/s0370-2693(99)00603-6 · Cited by 1,846
Self-citationBeyond the cosmological standard model
Joyce, A., Jain, B., Khoury, J., & Trodden, M. (2015) · Physics Reports · doi:10.1016/j.physrep.2014.12.002 · Cited by 1,231
Metadata
- Authors
- Garriga, J., & Mukhanov, V. F.
- Venue
- Physics Letters B
- Publisher
- Elsevier BV
- Published
- 1999-07
- Volume
- 458
- Issue
- 2-3
- Pages
- 219-225
- ISSN
- 0370-2693 (ISSN-L)
- OpenAlex
- W1993178879
- Cited by
- 1,111
- References
- 1
- FWCI
- 4.69
- Type
- journal article
- Language
- en
- Open access
- green
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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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