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Cited by 314

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

A Simple Cosmology with a Varying Fine Structure Constant

Open access
Sandvik, Håvard Bunes, Barrow, John D., Magueijo, João·2002·Physical Review Letters

Abstract

We investigate the cosmological consequences of a theory in which the electric charge e can vary. In this theory the fine structure "constant," alpha, remains almost constant in the radiation era, undergoes a small increase in the matter era, but approaches a constant value when the universe starts accelerating because of a positive cosmological constant. This model satisfies geonuclear, nucleosynthesis, and cosmic microwave background constraints on time variation in alpha, while fitting the observed accelerating Universe and evidence for small alpha variations in quasar spectra. It also places specific restrictions on the nature of the dark matter. Further tests, involving stellar spectra and Eötvös experiments, are proposed.

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Crossref · 10.1103/physrevlett.88.031302

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Metadata

Authors
Sandvik, H. B., Barrow, J. D., & Magueijo, J.
Venue
Physical Review Letters
Published
2002-01-02
Volume
88
Issue
3
Pages
031302-031302
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W1484125271
Cited by
314
References
5
FWCI
19.25
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A Simple Cosmology with a Varying Fine Structure Constant. https://app.cochat.ai/papers/10.1103/physrevlett.88.031302
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Sandvik, H. B., Barrow, J. D., & Magueijo, J. (2002). A Simple Cosmology with a Varying Fine Structure Constant. Physical Review Letters. https://doi.org/10.1103/physrevlett.88.031302

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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).

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