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Cited by 513

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Time varying speed of light as a solution to cosmological puzzles

Open access
Albrecht, Andreas, Magueijo, João·1999·Physical Review D

Abstract

We consider the cosmological implications of light travelling faster in the early Universe. We propose a prescription for deriving corrections to the cosmological evolution equations while the speed of light $c$ is changing. We then show how the horizon, flatness, and cosmological constant problems may be solved. We also study cosmological perturbations in this scenario and show how one may solve the homogeneity and isotropy problems. As it stands, our scenario appears to most easily produce extreme homogeneity, requiring structure to be produced in the standard big bang epoch. Producing significant perturbations during the earlier epoch would require a rather careful design of the function $c(t).$ The large entropy inside the horizon nowadays can also be accounted for in this scenario.

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Crossref · 10.1103/physrevd.59.043516

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Metadata

Authors
Albrecht, A., & Magueijo, J.
Venue
Physical Review D
Published
1999-01-28
Volume
59
Issue
4
ISSN
  • 0556-2821 (ISSN-L)
  • 1089-4918
OpenAlex
W2140123438
Cited by
513
References
25
FWCI
25.10
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Time varying speed of light as a solution to cosmological puzzles. https://app.cochat.ai/papers/10.1103/physrevd.59.043516
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Albrecht, A., & Magueijo, J. (1999). Time varying speed of light as a solution to cosmological puzzles. Physical Review D. https://doi.org/10.1103/physrevd.59.043516

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.