FROM ELASTIC CONTINUA TO SPACE-TIME (ABSTRACT)

Since the early days of the theory of electromagnetism and of gravity the idea of space, then space-time, as a sort of physical continuum hovered the scientific community. Actually general relativity shows the strong similarity that exists between the geometrical properties of space-time and the one...

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Bibliographic Details
Published in:Proceedings of the International Conference 2009-07, Vol.1241, p.A60a-A60a
Main Authors: Tartaglia, Angelo, Radicella, Ninfa
Format: Article
Language:English
Subjects:
Communities
Construction
Continuums
Elastic constants
Electromagnetism
Gravitation
Mathematical analysis
Relativity
Similarity
Strain
Supernovae
Tensors
Universe
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Summary:Since the early days of the theory of electromagnetism and of gravity the idea of space, then space-time, as a sort of physical continuum hovered the scientific community. Actually general relativity shows the strong similarity that exists between the geometrical properties of space-time and the ones of a strained elastic continuum. The bridge between geometry and the elastic potential, as well in three as in three plus one dimensions, is the strain tensor, read as the nontrivial part of the metric tensor. On the basis of this remark and exploiting appropriate multidimensional embeddings, it is possible to build a full theory of space-time, allowing to account for the accelerated expansion of the universe. How this can be obtained is the content of the paper. The theory fits the cosmic accelerated expansion data from type la supernovae better than the ACDM model.
ISSN:0094-243X