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Cited by 492

The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.

The Physics of Cosmic Acceleration

Open access
Caldwell, Robert R., Kamionkowski, Marc·2009·Annual Review of Nuclear and Particle Science

Abstract

The discovery that the cosmic expansion is accelerating has been followed by an intense theoretical and experimental response in physics and astronomy. The discovery implies that our most basic notions about how gravity works are violated on cosmological distance scales. A simple fix is to introduce a cosmological constant into the field equations for general relativity. However, the extremely small value of the cosmological constant, relative to theoretical expectations, has led theorists to explore numerous alternative explanations that involve the introduction of an exotic negative-pressure fluid or a modification of general relativity. Here we review the evidence for cosmic acceleration. We then survey some of the theoretical attempts to account for it, including the cosmological constant, quintessence and its variants, mass-varying neutrinos, and modifications of general relativity. We discuss experimental and observational tests that may allow us to distinguish among some of the theoretical ideas that have been proposed.

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Crossref · 10.1146/annurev-nucl-010709-151330

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Metadata

Authors
Caldwell, R. R., & Kamionkowski, M.
Venue
Annual Review of Nuclear and Particle Science
Published
2009-11-01
Volume
59
Issue
1
Pages
397-429
ISSN
  • 0163-8998 (ISSN-L)
  • 1545-4134
OpenAlex
W2153763367
Cited by
492
References
18
FWCI
2.24
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The Physics of Cosmic Acceleration. https://app.cochat.ai/papers/10.1146/annurev-nucl-010709-151330
The paper
Caldwell, R. R., & Kamionkowski, M. (2009). The Physics of Cosmic Acceleration. Annual Review of Nuclear and Particle Science. https://doi.org/10.1146/annurev-nucl-010709-151330

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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.