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Cork Open Research Archive (CORA)
Article . 1987
Data sources: Cork Open Research Archive (CORA)
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https://doi.org/10.1103/physre...
Article . 1987 . Peer-reviewed
License: APS Licenses for Journal Article Re-use
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https://pubmed.ncbi.nlm.nih.go...
Article
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https://dx.doi.org/10.1103/phy...
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Average energy density and the size of the Universe

descriptionPublicationkeyboard_double_arrow_right Article 15 Oct 1987 Ireland English Publisher:American Physical Society (APS)Journal:Physical Review D, volume 36, pages 2,226-2,228 (issn: 0556-2821, Copyright policy )Publicly funded
Authors: Ó Murchadha, Niall;

doi: 10.1103/physrevd.36.2226

pmid: 9958425

handle: 10468/4611

Average energy density and the size of the Universe

Abstract

This paper shows that there is a relationship between the maximum volume of any cosmological solution of the Einstein equations and its average energy density. An inequality is derived which shows that the average energy density multiplied by the volume to the (2/3 power must be greater than a fixed constant. Equivalently, the total energy content, divided by the volume to the (1/3 power, is bounded below.

Country
Ireland
Related Organizations
Keywords

Einstein equations, Average energy density

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green