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Cosmology with Ultralight Pseudo Nambu-Goldstone Bosons
Open accessAbstract
We explore the cosmological implications of an ultralight pseudo Nambu-Goldstone boson. With global spontaneous symmetry breaking scale $f\ensuremath{\simeq}{10}^{18}\mathrm{GeV}$ and explicit breaking scale comparable to Mikheyev-Smirnov-Wolfenstein neutrino masses, $M\ensuremath{\sim}{10}^{\ensuremath{-}3}\mathrm{eV}$, such a field, which acquires a mass ${m}_{\ensuremath{\varphi}}\ensuremath{\sim}{M}^{2}/f\ensuremath{\sim}{H}_{0}$, would currently dominate the energy density of the Universe. The field acts as an effective cosmological constant before relaxing into a condensate of nonrelativistic bosons. Such a model can reconcile dynamical estimates of the density parameter, ${\ensuremath{\Omega}}_{m}\ensuremath{\sim}0.2$, with a spatially flat universe, yielding ${H}_{0}{t}_{0}\ensuremath{\simeq}1$ consistent with limits from gravitational lens statistics.
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Citations
Cites
Cosmological consequences of a rolling homogeneous scalar field
Ratra, B., & Peebles, P. J. E. (1988) · Physical Review D · doi:10.1103/physrevd.37.3406 · Cited by 4,310
Cited by
THE CASE FOR A POSITIVE COSMOLOGICAL Λ-TERM
SAHNI, V., & STAROBINSKY, A. (2000) · International Journal of Modern Physics D · doi:10.1142/s0218271800000542 · Cited by 2,767
Carroll, S. M. (2001) · Living Reviews in Relativity · doi:10.12942/lrr-2001-1 · Cited by 2,650
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
Beyond 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
Quintessence and the Rest of the World: Suppressing Long-Range Interactions
Carroll, S. M. (1998) · Physical Review Letters · doi:10.1103/physrevlett.81.3067 · Cited by 1,172
Metadata
- Authors
- Frieman, J. A., Hill, C. T., Stebbins, A., & Waga, I.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1995-09-11
- Volume
- 75
- Issue
- 11
- Pages
- 2077-2080
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2060921884
- Cited by
- 931
- References
- 1
- FWCI
- 8.98
- Type
- journal article
- Language
- en
- Open access
- green
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- Frieman, J. A., Hill, C. T., Stebbins, A., & Waga, I. (1995). Cosmology with Ultralight Pseudo Nambu-Goldstone Bosons. Physical Review Letters. https://doi.org/10.1103/physrevlett.75.2077
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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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