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Coherent scalar-field oscillations in an expanding universe
Abstract
Motivated by the cosmological importance of coherent (classical), scalar-field oscillations in the context of the invisible axion and the new inflationary-universe scenario, we analyze, in general, the classical evolution of a scalar field in an isotropic and homogeneous cosmology. For a scalar potential of the form $V(\ensuremath{\varphi})=a{\ensuremath{\varphi}}^{n}$, the energy density of the scalar-field oscillations decreases as ${R}^{\ensuremath{-}\frac{6n}{(n+2)}}$ when the oscillations are rapid compared to the expansion rate ($R=\mathrm{cosmic}\mathrm{scale}\mathrm{factor}$). We also investigate the effect of higher-order terms in the potential perturbatively, and analyze the decay of the coherent field oscillations due to quantum particle creation.
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Citations
Cites
Inflationary universe: A possible solution to the horizon and flatness problems
Guth, A. H. (1981) · Physical Review D · doi:10.1103/physrevd.23.347 · Cited by 9,983
Linde, A. D. (1982) · Physics Letters B · doi:10.1016/0370-2693(82)91219-9 · Cited by 6,405
Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking
Albrecht, A., & Steinhardt, P. J. (1982) · Physical Review Letters · doi:10.1103/physrevlett.48.1220 · Cited by 4,981
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Boundary conditions in quantum cosmology
Vilenkin, A. (1986) · Physical Review D · doi:10.1103/physrevd.33.3560 · Cited by 428
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Arvanitaki, A., Huang, J., & Van Tilburg, K. (2015) · Physical Review D · doi:10.1103/physrevd.91.015015 · Cited by 404
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Van Tilburg, K., Leefer, N., Bougas, L., & Budker, D. (2015) · Physical Review Letters · doi:10.1103/physrevlett.115.011802 · Cited by 253
Arvanitaki, A., Dimopoulos, S., Galanis, M., Lehner, L., Thompson, J. O., & Van Tilburg, K. (2020) · Physical Review D · doi:10.1103/physrevd.101.083014 · Cited by 175
Metadata
- Authors
- Turner, M. S.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 1983-09-15
- Volume
- 28
- Issue
- 6
- Pages
- 1243-1247
- ISSN
- 0556-2821 (ISSN-L)
- OpenAlex
- W2174056583
- Cited by
- 904
- References
- 3
- FWCI
- 7.45
- Type
- journal article
- Language
- en
- Open access
- closed
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- Turner, M. S. (1983). Coherent scalar-field oscillations in an expanding universe. Physical Review D. https://doi.org/10.1103/physrevd.28.1243
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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